#C9DAFF
Closest named color: Cadet Gray (#CED4DA). oklch(88.8% 0.054 265.8), rgb(201, 218, 255).
Aa
Black text reads best on this color (14.95:1).
About this color
#C9DAFF is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.054 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.049 away. Black text reads best on it, at 14.95:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.95:1 |
| White text | 1.40:1 |
Values
| HEX | #C9DAFF |
| RGB | rgb(201, 218, 255) |
| HSL | hsl(221, 100%, 89%) |
| OKLCH | oklch(88.8% 0.054 265.8) |
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 #C9DAFF | 1.40:1 | Fails | Lc -22.3 | Dividers and decoration only |
| Black text on #C9DAFF | 14.95:1 | AAA | Lc 84.1 | Fine for body text |
| #C9DAFF text on white | 1.40:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #C9DAFF text on black | 14.95:1 | AAA | Lc -83.9 | 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
#F2F5FC
oklch(97% 0.01 267.4)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200 (this color)
#C9DAFF
oklch(88.8% 0.054 265.8)
-
Step 300
300
#ABC0EF
oklch(80.8% 0.071 266)
-
Step 400
400
#7F9FE7
oklch(70.8% 0.112 265.4)
-
Step 500
500
#6085DF
oklch(63.1% 0.142 265.7)
-
Step 600
600
#476DCD
oklch(55.7% 0.155 265.4)
-
Step 700
700
#395AB2
oklch(49.1% 0.145 265.8)
-
Step 800
800
#2F4A90
oklch(42.7% 0.12 265.7)
-
Step 900
900
#2A3F73
oklch(37.9% 0.093 265.6)
-
Step 950
950
#192543
oklch(27% 0.058 266.1)
#C9DAFF 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) | #CFDCFF | 0.010 |
| Deuteranopia (no green cones) | #CAD7FE | 0.007 |
| Tritanopia (no blue cones) | #BCE1E6 | 0.048 |
| Achromatopsia (no color) | #DADADA | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DAFF
#C9DAFF
oklch(88.8% 0.054 265.8)
- #EAD8B2
#EAD8B2
oklch(88.7% 0.054 85.6)
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 #C9DAFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.049
- Pale Lilac #E4CBFF ΔE 0.050
- Light Blue #ADD8E6 ΔE 0.051
- Lavender #E6E6FA ΔE 0.053
- Light Periwinkle #C1C6FC ΔE 0.054
- Powder Blue #B0E0E6 ΔE 0.054
- Pale Lavender #EECFFE ΔE 0.054
- Gainsboro #DCDCDC ΔE 0.055
Use #C9DAFF 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.