#C9DBEE
Closest named color: Cadet Gray (#CED4DA). oklch(88.4% 0.033 249.6), rgb(201, 219, 238).
Aa
Black text reads best on this color (14.85:1).
About this color
#C9DBEE is a light, muted blue. In OKLCH its lightness is 88%, its chroma 0.033 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.028 away. Black text reads best on it, at 14.85:1.
| Hue family | Blues |
| Lightness | light (88%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.85:1 |
| White text | 1.41:1 |
Values
| HEX | #C9DBEE |
| RGB | rgb(201, 219, 238) |
| HSL | hsl(211, 52%, 86%) |
| OKLCH | oklch(88.4% 0.033 249.6) |
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 #C9DBEE | 1.41:1 | Fails | Lc -22.8 | Dividers and decoration only |
| Black text on #C9DBEE | 14.85:1 | AAA | Lc 83.7 | Fine for body text |
| #C9DBEE text on white | 1.41:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #C9DBEE text on black | 14.85:1 | AAA | Lc -83.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200 (this color)
#C9DBEE
oklch(88.4% 0.033 249.6)
-
Step 300
300
#ADC3DB
oklch(80.8% 0.042 250.6)
-
Step 400
400
#81A4C9
oklch(70.6% 0.067 250.2)
-
Step 500
500
#608EBC
oklch(63.2% 0.086 249.3)
-
Step 600
600
#4677A8
oklch(55.6% 0.093 249.8)
-
Step 700
700
#376490
oklch(49.1% 0.087 249.5)
-
Step 800
800
#2E5275
oklch(42.8% 0.072 249.2)
-
Step 900
900
#29445E
oklch(37.7% 0.056 248.6)
-
Step 950
950
#192837
oklch(27.1% 0.035 249.2)
#C9DBEE 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) | #D4DBEF | 0.014 |
| Deuteranopia (no green cones) | #D0D7EE | 0.013 |
| Tritanopia (no blue cones) | #C0DFE1 | 0.027 |
| Achromatopsia (no color) | #D9D9D9 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DBEE
#C9DBEE
oklch(88.4% 0.033 249.6)
- #E7D5C2
#E7D5C2
oklch(88.3% 0.032 68.9)
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 #C9DBEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.028
- Gainsboro #DCDCDC ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.036
- Light Gray #D3D3D3 ΔE 0.037
- Light Blue #ADD8E6 ΔE 0.038
- Pale Silver #D8E2DC ΔE 0.040
- Platinum #E0E1DD ΔE 0.044
- Celeste #A8DADC ΔE 0.050
Use #C9DBEE 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.