#C9DBFF
Closest named color: Cadet Gray (#CED4DA). oklch(89% 0.053 264.3), rgb(201, 219, 255).
Aa
Black text reads best on this color (15.06:1).
About this color
#C9DBFF is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.053 and its hue 264°. 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 15.06:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 15.06:1 |
| White text | 1.39:1 |
Values
| HEX | #C9DBFF |
| RGB | rgb(201, 219, 255) |
| HSL | hsl(220, 100%, 89%) |
| OKLCH | oklch(89% 0.053 264.3) |
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 #C9DBFF | 1.39:1 | Fails | Lc -21.8 | Dividers and decoration only |
| Black text on #C9DBFF | 15.06:1 | AAA | Lc 84.5 | Fine for body text |
| #C9DBFF text on white | 1.39:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #C9DBFF text on black | 15.06:1 | AAA | Lc -84.3 | 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)
#C9DBFF
oklch(89% 0.053 264.3)
-
Step 300
300
#AAC1EE
oklch(80.9% 0.069 263.7)
-
Step 400
400
#7E9FE5
oklch(70.6% 0.11 264.5)
-
Step 500
500
#5E86DE
oklch(63.1% 0.14 264.3)
-
Step 600
600
#456ECC
oklch(55.7% 0.153 264.3)
-
Step 700
700
#365BB0
oklch(49% 0.142 264.2)
-
Step 800
800
#2D4B8F
oklch(42.7% 0.118 264.1)
-
Step 900
900
#283F72
oklch(37.7% 0.092 264.2)
-
Step 950
950
#182543
oklch(27% 0.059 265)
#C9DBFF 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) | #D0DDFF | 0.011 |
| Deuteranopia (no green cones) | #CBD8FE | 0.008 |
| Tritanopia (no blue cones) | #BCE2E7 | 0.047 |
| Achromatopsia (no color) | #DADADA | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DBFF
#C9DBFF
oklch(89% 0.053 264.3)
- #EBD8B3
#EBD8B3
oklch(88.8% 0.053 84)
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 #C9DBFF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.049
- Lavender #E6E6FA ΔE 0.051
- Light Blue #ADD8E6 ΔE 0.051
- Pale Lilac #E4CBFF ΔE 0.052
- Powder Blue #B0E0E6 ΔE 0.053
- Gainsboro #DCDCDC ΔE 0.054
- Pale Lavender #EECFFE ΔE 0.055
- Light Periwinkle #C1C6FC ΔE 0.056
Use #C9DBFF 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.