#A4DDDA
Closest named color: Celeste (#A8DADC). oklch(85.8% 0.058 192.1), rgb(164, 221, 218).
Aa
Black text reads best on this color (13.93:1).
About this color
#A4DDDA is a light, muted teal or cyan. In OKLCH its lightness is 86%, its chroma 0.058 and its hue 192°. 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 13.93:1.
| Hue family | Teals and cyans |
| Lightness | light (86%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 13.93:1 |
| White text | 1.50:1 |
Values
| HEX | #A4DDDA |
| RGB | rgb(164, 221, 218) |
| HSL | hsl(177, 46%, 75%) |
| OKLCH | oklch(85.8% 0.058 192.1) |
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 #A4DDDA | 1.50:1 | Fails | Lc -26.8 | Dividers and decoration only |
| Black text on #A4DDDA | 13.93:1 | AAA | Lc 80.1 | Fine for body text |
| #A4DDDA text on white | 1.50:1 | Fails | Lc 23.7 | Dividers and decoration only |
| #A4DDDA text on black | 13.93:1 | AAA | Lc -79.5 | 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
#EEF8F7
oklch(97.1% 0.011 189.8)
-
Step 100
100
#DAEFED
oklch(93.6% 0.022 189.9)
-
Step 200
200 (this color)
#A4DDDA
oklch(85.8% 0.058 192.1)
-
Step 300
300
#85D0CD
oklch(80.8% 0.075 192.5)
-
Step 400
400
#0CB8B4
oklch(70.8% 0.12 192)
-
Step 500
500
#009E9A
oklch(63.2% 0.109 191.6)
-
Step 600
600
#008582
oklch(55.7% 0.096 192)
-
Step 700
700
#006F6D
oklch(49% 0.084 192.6)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950
#002D2C
oklch(26.9% 0.046 192.5)
#A4DDDA 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) | #D6D7DA | 0.062 |
| Deuteranopia (no green cones) | #CBCFDB | 0.058 |
| Tritanopia (no blue cones) | #91E0DC | 0.020 |
| Achromatopsia (no color) | #D2D2D2 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4DDDA
#A4DDDA
oklch(85.8% 0.058 192.1)
- #F4C1C6
#F4C1C6
oklch(85.7% 0.059 11.8)
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 #A4DDDA, 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 0.023
- Light Blue #ADD8E6 ΔE 0.027
- Tiffany Blue #94D2BD ΔE 0.049
- Pale Turquoise #AFEEEE ΔE 0.050
- Light Teal #90E4C1 ΔE 0.051
- Robin's Egg Blue #98EFF9 ΔE 0.053
- Cadet Gray #CED4DA ΔE 0.054
Use #A4DDDA 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.