#A4E5E9
Closest named color: Powder Blue (#B0E0E6). oklch(88% 0.065 200.8), rgb(164, 229, 233).
Aa
Black text reads best on this color (14.96:1).
About this color
#A4E5E9 is a light, muted teal or cyan. In OKLCH its lightness is 88%, its chroma 0.065 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Powder Blue (#B0E0E6), ΔE 0.017 away. Black text reads best on it, at 14.96:1.
| Hue family | Teals and cyans |
| Lightness | light (88%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Powder Blue (#B0E0E6) |
| Black text | 14.96:1 |
| White text | 1.40:1 |
Values
| HEX | #A4E5E9 |
| RGB | rgb(164, 229, 233) |
| HSL | hsl(183, 61%, 78%) |
| OKLCH | oklch(88% 0.065 200.8) |
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 #A4E5E9 | 1.40:1 | Fails | Lc -22.2 | Dividers and decoration only |
| Black text on #A4E5E9 | 14.96:1 | AAA | Lc 84.2 | Fine for body text |
| #A4E5E9 text on white | 1.40:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #A4E5E9 text on black | 14.96:1 | AAA | Lc -84.0 | 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
#EDF8F8
oklch(97.1% 0.012 197)
-
Step 100
100
#D8EFF0
oklch(93.6% 0.024 199.9)
-
Step 200
200 (this color)
#A4E5E9
oklch(88% 0.065 200.8)
-
Step 300
300
#7BD1D7
oklch(80.9% 0.084 201.4)
-
Step 400
400
#00B6BF
oklch(70.6% 0.12 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#A4E5E9 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) | #DCDFE9 | 0.067 |
| Deuteranopia (no green cones) | #CFD6E9 | 0.061 |
| Tritanopia (no blue cones) | #8CEAE6 | 0.027 |
| Achromatopsia (no color) | #DADADA | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4E5E9
#A4E5E9
oklch(88% 0.065 200.8)
- #FFC7C5
#FFC7C5
oklch(87.9% 0.064 20.8)
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 #A4E5E9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Powder Blue #B0E0E6 ΔE 0.017
- Pale Turquoise #AFEEEE ΔE 0.028
- Robin's Egg Blue #98EFF9 ΔE 0.029
- Celeste #A8DADC ΔE 0.029
- Light Blue #ADD8E6 ΔE 0.034
- Robin Egg Blue #8AF1FE ΔE 0.039
- Diamond #B9F2FF ΔE 0.049
- Robin's Egg #6DEDFD ΔE 0.050
Use #A4E5E9 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.