#C9DDEA
Closest named color: Cadet Gray (#CED4DA). oklch(88.7% 0.028 236.2), rgb(201, 221, 234).
Aa
Black text reads best on this color (15.01:1).
About this color
#C9DDEA is a light close to neutral grey. In OKLCH its lightness is 89%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.026 away. Black text reads best on it, at 15.01:1.
| Hue family | Neutrals |
| Lightness | light (89%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 15.01:1 |
| White text | 1.39:1 |
Values
| HEX | #C9DDEA |
| RGB | rgb(201, 221, 234) |
| HSL | hsl(204, 44%, 85%) |
| OKLCH | oklch(88.7% 0.028 236.2) |
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 #C9DDEA | 1.39:1 | Fails | Lc -22.1 | Dividers and decoration only |
| Black text on #C9DDEA | 15.01:1 | AAA | Lc 84.4 | Fine for body text |
| #C9DDEA text on white | 1.39:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #C9DDEA text on black | 15.01:1 | AAA | Lc -84.1 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E4EBF0
oklch(93.6% 0.01 238.5)
-
Step 200
200 (this color)
#C9DDEA
oklch(88.7% 0.028 236.2)
-
Step 300
300
#ABC5D5
oklch(80.9% 0.036 234.9)
-
Step 400
400
#7EA7C0
oklch(70.7% 0.058 235.4)
-
Step 500
500
#5C91B0
oklch(63.2% 0.073 235.3)
-
Step 600
600
#417A9C
oklch(55.5% 0.08 236.8)
-
Step 700
700
#326785
oklch(49.1% 0.074 235.8)
-
Step 800
800
#2B546C
oklch(42.7% 0.061 236.3)
-
Step 900
900
#274658
oklch(37.8% 0.048 235.5)
-
Step 950
950
#172933
oklch(27% 0.03 233.8)
#C9DDEA 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) | #D7DCEB | 0.018 |
| Deuteranopia (no green cones) | #D3D8EA | 0.017 |
| Tritanopia (no blue cones) | #C1E0E1 | 0.020 |
| Achromatopsia (no color) | #DADADA | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DDEA
#C9DDEA
oklch(88.7% 0.028 236.2)
- #E9D5C8
#E9D5C8
oklch(88.6% 0.028 55.3)
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 #C9DDEA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.026
- Gainsboro #DCDCDC ΔE 0.029
- Powder Blue #B0E0E6 ΔE 0.032
- Pale Silver #D8E2DC ΔE 0.033
- Light Gray #D3D3D3 ΔE 0.034
- Platinum #E0E1DD ΔE 0.038
- Light Blue #ADD8E6 ΔE 0.038
- Celeste #A8DADC ΔE 0.047
Use #C9DDEA 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.