#A4D1D7
Closest named color: Celeste (#A8DADC). oklch(83.1% 0.048 206.3), rgb(164, 209, 215).
Aa
Black text reads best on this color (12.67:1).
About this color
#A4D1D7 is a light, muted teal or cyan. In OKLCH its lightness is 83%, its chroma 0.048 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Celeste (#A8DADC), ΔE 0.025 away. Black text reads best on it, at 12.67:1.
| Hue family | Teals and cyans |
| Lightness | light (83%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Celeste (#A8DADC) |
| Black text | 12.67:1 |
| White text | 1.65:1 |
Values
| HEX | #A4D1D7 |
| RGB | rgb(164, 209, 215) |
| HSL | hsl(187, 39%, 74%) |
| OKLCH | oklch(83.1% 0.048 206.3) |
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 #A4D1D7 | 1.65:1 | Fails | Lc -32.6 | Non-text elements, placeholder text |
| Black text on #A4D1D7 | 12.67:1 | AAA | Lc 74.9 | Content text, not long reading |
| #A4D1D7 text on white | 1.65:1 | Fails | Lc 28.9 | Dividers and decoration only |
| #A4D1D7 text on black | 12.67:1 | AAA | Lc -73.9 | Content text, not long reading |
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 300.
-
Step 50
50
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0EDEE
oklch(93.7% 0.014 202.5)
-
Step 200
200
#C6DFE2
oklch(88.6% 0.027 205.4)
-
Step 300
300 (this color)
#A4D1D7
oklch(83.1% 0.048 206.3)
-
Step 400
400
#63AEB8
oklch(70.6% 0.076 206.7)
-
Step 500
500
#299AA7
oklch(63.1% 0.098 206.5)
-
Step 600
600
#00838F
oklch(55.7% 0.095 206.1)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A63
oklch(42.7% 0.073 206.6)
-
Step 900
900
#024B52
oklch(37.7% 0.064 205.7)
-
Step 950
950
#082C30
oklch(27% 0.04 205.7)
#A4D1D7 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) | #CACDD7 | 0.048 |
| Deuteranopia (no green cones) | #C1C6D7 | 0.044 |
| Tritanopia (no blue cones) | #94D5D3 | 0.022 |
| Achromatopsia (no color) | #C9C9C9 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4D1D7
#A4D1D7
oklch(83.1% 0.048 206.3)
- #E5BCB7
#E5BCB7
oklch(83% 0.048 26.3)
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 #A4D1D7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Celeste #A8DADC ΔE 0.025
- Light Blue #ADD8E6 ΔE 0.028
- Light Blue Grey #B7C9E2 ΔE 0.038
- Light Steel Blue #B0C4DE ΔE 0.041
- Cloudy Blue #ACC2D9 ΔE 0.042
- Sky Blue #87CEEB ΔE 0.043
- Tiffany Blue #94D2BD ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.044
Use #A4D1D7 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.