#C9DCEF
Closest named color: Cadet Gray (#CED4DA). oklch(88.6% 0.033 248.2), rgb(201, 220, 239).
Aa
Black text reads best on this color (14.96:1).
About this color
#C9DCEF is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.033 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.030 away. Black text reads best on it, at 14.96:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.96:1 |
| White text | 1.40:1 |
Values
| HEX | #C9DCEF |
| RGB | rgb(201, 220, 239) |
| HSL | hsl(210, 54%, 86%) |
| OKLCH | oklch(88.6% 0.033 248.2) |
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 #C9DCEF | 1.40:1 | Fails | Lc -22.3 | Dividers and decoration only |
| Black text on #C9DCEF | 14.96:1 | AAA | Lc 84.2 | Fine for body text |
| #C9DCEF text on white | 1.40:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #C9DCEF text on black | 14.96:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200 (this color)
#C9DCEF
oklch(88.6% 0.033 248.2)
-
Step 300
300
#ACC4DC
oklch(81% 0.043 248.4)
-
Step 400
400
#7FA5CA
oklch(70.8% 0.069 248.1)
-
Step 500
500
#5E8EBC
oklch(63.1% 0.087 248.3)
-
Step 600
600
#4377A8
oklch(55.5% 0.095 248.6)
-
Step 700
700
#346490
oklch(49% 0.088 248.2)
-
Step 800
800
#2C5275
oklch(42.7% 0.073 248.1)
-
Step 900
900
#28445E
oklch(37.7% 0.056 247.8)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#C9DCEF 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) | #D5DCF0 | 0.016 |
| Deuteranopia (no green cones) | #D0D8EF | 0.013 |
| Tritanopia (no blue cones) | #C0E0E2 | 0.027 |
| Achromatopsia (no color) | #DADADA | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DCEF
#C9DCEF
oklch(88.6% 0.033 248.2)
- #E9D6C3
#E9D6C3
oklch(88.7% 0.033 67.4)
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 #C9DCEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.030
- Gainsboro #DCDCDC ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.036
- Light Gray #D3D3D3 ΔE 0.038
- Light Blue #ADD8E6 ΔE 0.039
- Pale Silver #D8E2DC ΔE 0.039
- Platinum #E0E1DD ΔE 0.043
- Lavender #E6E6FA ΔE 0.049
Use #C9DCEF 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.