#A4EEF5
Closest named color: Robin's Egg Blue (#98EFF9). oklch(90.3% 0.074 203.4), rgb(164, 238, 245).
Aa
Black text reads best on this color (16.12:1).
About this color
#A4EEF5 is a very light, moderately saturated teal or cyan. In OKLCH its lightness is 90%, its chroma 0.074 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.012 away. Black text reads best on it, at 16.12:1.
| Hue family | Teals and cyans |
| Lightness | very light (90%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 16.12:1 |
| White text | 1.30:1 |
Values
| HEX | #A4EEF5 |
| RGB | rgb(164, 238, 245) |
| HSL | hsl(185, 80%, 80%) |
| OKLCH | oklch(90.3% 0.074 203.4) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #A4EEF5 | 1.30:1 | Fails | Lc -17.1 | Dividers and decoration only |
| Black text on #A4EEF5 | 16.12:1 | AAA | Lc 88.7 | Fine for body text |
| #A4EEF5 text on white | 1.30:1 | Fails | Lc 14.9 | Not readable |
| #A4EEF5 text on black | 16.12:1 | AAA | Lc -88.9 | Fine for body text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 200.
-
Step 50
50
#ECF8F9
oklch(97% 0.013 202.9)
-
Step 100
100
#D6F0F2
oklch(93.7% 0.027 202.3)
-
Step 200
200 (this color)
#A4EEF5
oklch(90.3% 0.074 203.4)
-
Step 300
300
#6FD3DC
oklch(81% 0.094 203.2)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA7
oklch(63.1% 0.108 203.6)
-
Step 600
600
#00838C
oklch(55.6% 0.095 203.3)
-
Step 700
700
#006E76
oklch(49.1% 0.084 203.6)
-
Step 800
800
#005A61
oklch(42.6% 0.073 204)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#A4EEF5 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #E3E8F6 | 0.074 |
| Deuteranopia (no green cones) | #D5DDF5 | 0.068 |
| Tritanopia (no blue cones) | #86F4F0 | 0.033 |
| Achromatopsia (no color) | #E1E1E1 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4EEF5
#A4EEF5
oklch(90.3% 0.074 203.4)
- #FFD3CF
#FFD3CF
oklch(90.3% 0.05 24.2)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A4EEF5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.012
- Pale Turquoise #AFEEEE ΔE 0.014
- Robin Egg Blue #8AF1FE ΔE 0.025
- Diamond #B9F2FF ΔE 0.029
- Powder Blue #B0E0E6 ΔE 0.037
- Pale Sky Blue #BDF6FE ΔE 0.037
- Robin's Egg #6DEDFD ΔE 0.048
- Pale Cyan #B7FFFA ΔE 0.051
Use #A4EEF5 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.