#A4DDE2
Closest named color: Celeste (#A8DADC). oklch(86% 0.059 202.9), rgb(164, 221, 226).
Aa
Black text reads best on this color (14.01:1).
About this color
#A4DDE2 is a light, muted teal or cyan. In OKLCH its lightness is 86%, its chroma 0.059 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.010 away. Black text reads best on it, at 14.01:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 14.01:1 |
| White text | 1.49:1 |
Values
| HEX | #A4DDE2 |
| RGB | rgb(164, 221, 226) |
| HSL | hsl(185, 52%, 76%) |
| OKLCH | oklch(86% 0.059 202.9) |
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 #A4DDE2 | 1.49:1 | Fails | Lc -26.4 | Dividers and decoration only |
| Black text on #A4DDE2 | 14.01:1 | AAA | Lc 80.4 | Fine for body text |
| #A4DDE2 text on white | 1.49:1 | Fails | Lc 23.3 | Dividers and decoration only |
| #A4DDE2 text on black | 14.01:1 | AAA | Lc -79.9 | 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
#EEF8F8
oklch(97.2% 0.011 197)
-
Step 100
100
#DAEEF0
oklch(93.5% 0.021 204)
-
Step 200
200 (this color)
#A4DDE2
oklch(86% 0.059 202.9)
-
Step 300
300
#84CFD6
oklch(80.8% 0.075 203.3)
-
Step 400
400
#00B6C2
oklch(70.7% 0.12 203.2)
-
Step 500
500
#009CA6
oklch(63.1% 0.107 202.8)
-
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
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B51
oklch(37.6% 0.064 204)
-
Step 950
950
#002D30
oklch(27% 0.046 201.8)
#A4DDE2 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) | #D4D8E2 | 0.058 |
| Deuteranopia (no green cones) | #C9CFE2 | 0.055 |
| Tritanopia (no blue cones) | #8FE1DE | 0.025 |
| Achromatopsia (no color) | #D3D3D3 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4DDE2
#A4DDE2
oklch(86% 0.059 202.9)
- #F5C3BF
#F5C3BF
oklch(86% 0.058 23.6)
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 #A4DDE2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.010
- Powder Blue #B0E0E6 ΔE 0.017
- Light Blue #ADD8E6 ΔE 0.019
- Pale Turquoise #AFEEEE ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.048
- Cadet Gray #CED4DA ΔE 0.052
- Robin Egg Blue #8AF1FE ΔE 0.056
- Light Blue Grey #B7C9E2 ΔE 0.056
Use #A4DDE2 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.