#A4EAF9
Closest named color: Robin's Egg Blue (#98EFF9). oklch(89.6% 0.072 212.5), rgb(164, 234, 249).
Aa
Black text reads best on this color (15.71:1).
About this color
#A4EAF9 is a light, moderately saturated teal or cyan. In OKLCH its lightness is 90%, its chroma 0.072 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Robin's Egg Blue (#98EFF9), ΔE 0.017 away. Black text reads best on it, at 15.71:1.
| Hue family | Teals and cyans |
| Lightness | light (90%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Robin's Egg Blue (#98EFF9) |
| Black text | 15.71:1 |
| White text | 1.33:1 |
Values
| HEX | #A4EAF9 |
| RGB | rgb(164, 234, 249) |
| HSL | hsl(191, 88%, 81%) |
| OKLCH | oklch(89.6% 0.072 212.5) |
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 #A4EAF9 | 1.33:1 | Fails | Lc -18.9 | Dividers and decoration only |
| Black text on #A4EAF9 | 15.71:1 | AAA | Lc 87.2 | Fine for body text |
| #A4EAF9 text on white | 1.33:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #A4EAF9 text on black | 15.71:1 | AAA | Lc -87.2 | 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
#EDF8FA
oklch(97.1% 0.012 209.8)
-
Step 100
100
#D6EFF5
oklch(93.6% 0.028 213.8)
-
Step 200
200 (this color)
#A4EAF9
oklch(89.6% 0.072 212.5)
-
Step 300
300
#73D1E4
oklch(81% 0.093 212.3)
-
Step 400
400
#00B4CE
oklch(70.7% 0.124 212.8)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#A4EAF9 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) | #DEE5FA | 0.068 |
| Deuteranopia (no green cones) | #D0DAF9 | 0.063 |
| Tritanopia (no blue cones) | #85F1EE | 0.040 |
| Achromatopsia (no color) | #DFDFDF | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4EAF9
#A4EAF9
oklch(89.6% 0.072 212.5)
- #FFD0C6
#FFD0C6
oklch(89.6% 0.055 32.1)
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 #A4EAF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Robin's Egg Blue #98EFF9 ΔE 0.017
- Pale Turquoise #AFEEEE ΔE 0.024
- Robin Egg Blue #8AF1FE ΔE 0.027
- Powder Blue #B0E0E6 ΔE 0.031
- Diamond #B9F2FF ΔE 0.033
- Pale Sky Blue #BDF6FE ΔE 0.044
- Robin's Egg #6DEDFD ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.047
Use #A4EAF9 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.