Instagram Brand Manual

Selection And Input

Text Fields

A compact 36px input with a paired light/dark border token and a floating label pattern.

Documented in /igSelection And Input

Findings

What's actually in /ig

  • ._aa48{height:36px;display:flex;flex:1 0 0;min-width:0} is the field container.
  • --ig-text-input-border-prism (219,223,228 / 43,48,54) and its hover variant --ig-text-input-border-hover-prism are real, paired light/dark tokens.
  • --input-border-radius:6px applies here as everywhere else inputs appear.

Usage

When to use it

Use when

Use for single-line text input: login, search-like inline entry, post caption controls, comment fields, and compact form values.

Avoid when

Avoid for multiline captions or long readable copy; use Text Views when content should expand beyond one line.

Anatomy

Anatomy

  1. 01

    36px field container

  2. 02

    Border (paired light/dark token)

  3. 03

    Label

  4. 04

    Value text

Specification

Spacing, colour, type, and motion

Height
36px
Radius
6px via --input-border-radius
Border
1px solid rgb(var(--ig-text-input-border-prism))
Hover border
rgb(var(--ig-text-input-border-hover-prism))
Layout
display:flex; flex:1 0 0; min-width:0

States

States

Interaction states for Text Fields
StateBehaviour
DefaultEmpty field rests at 36px with the prism border token.
HoverBorder darkens through --ig-text-input-border-hover-prism.
FocusedBorder remains darkened and the text cursor is visible inside the field.
FilledValue text occupies the field while the 36px container and label treatment remain stable.
ErrorBorder switches to --ig-error while preserving the same radius and height.
DisabledField opacity drops to .5 and input is unavailable.

Examples

Real interface compositions

Profile settings

Edit profile name field

Name, username, bio link, and pronouns fields keep the same 36px height and prism border token, with helper labels sitting outside the input rather than inside as placeholders.

36px height, --ig-text-input-border-prism, --input-border-radius 6px

Guidance

Usage guidance

  • Keep the field at exactly 36px tall — that's the confirmed height across the evidenced selector.
  • Source the border colour from the prism token pair, which already handles the hover state distinctly from the resting state.

Do / Don't

Do / Don't

Do

  • Use 6px radius, matching every other input-shaped control in the system.

Don’t

  • Introduce a taller default field height — 36px is the only evidenced size.

Code

Evidence-backed CSS

Text Fields — derived from /ig
.text-field {
  height: 36px;
  border-radius: var(--input-border-radius); /* 6px */
  border: 1px solid rgb(var(--ig-text-input-border-prism));
}
.text-field:hover { border-color: rgb(var(--ig-text-input-border-hover-prism)); }

See also

Covered in more depth elsewhere