#C9D9F9
Closest named color: Cadet Gray (#CED4DA). oklch(88.3% 0.048 264.3), rgb(201, 217, 249).
Aa
Black text reads best on this color (14.77:1).
About this color
#C9D9F9 is a light, muted blue. In OKLCH its lightness is 88%, its chroma 0.048 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.041 away. Black text reads best on it, at 14.77:1.
| Hue family | Blues |
| Lightness | light (88%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.77:1 |
| White text | 1.42:1 |
Values
| HEX | #C9D9F9 |
| RGB | rgb(201, 217, 249) |
| HSL | hsl(220, 80%, 88%) |
| OKLCH | oklch(88.3% 0.048 264.3) |
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 #C9D9F9 | 1.42:1 | Fails | Lc -23.1 | Dividers and decoration only |
| Black text on #C9D9F9 | 14.77:1 | AAA | Lc 83.4 | Fine for body text |
| #C9D9F9 text on white | 1.42:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #C9D9F9 text on black | 14.77:1 | AAA | Lc -83.1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200 (this color)
#C9D9F9
oklch(88.3% 0.048 264.3)
-
Step 300
300
#ADC1E9
oklch(80.9% 0.061 264.2)
-
Step 400
400
#82A0DE
oklch(70.7% 0.097 264.2)
-
Step 500
500
#6387D5
oklch(63.1% 0.125 264.4)
-
Step 600
600
#4A6FC2
oklch(55.5% 0.136 264.3)
-
Step 700
700
#3B5DA8
oklch(49.2% 0.126 264)
-
Step 800
800
#314C88
oklch(42.7% 0.105 264.2)
-
Step 900
900
#2B406D
oklch(37.7% 0.082 264)
-
Step 950
950
#192640
oklch(27.1% 0.052 263.2)
#C9D9F9 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) | #CFDBFB | 0.010 |
| Deuteranopia (no green cones) | #CBD6F8 | 0.008 |
| Tritanopia (no blue cones) | #BDDFE3 | 0.043 |
| Achromatopsia (no color) | #D8D8D8 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9D9F9
#C9D9F9
oklch(88.3% 0.048 264.3)
- #E7D7B6
#E7D7B6
oklch(88.4% 0.047 85.2)
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 #C9D9F9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.041
- Light Blue #ADD8E6 ΔE 0.046
- Powder Blue #B0E0E6 ΔE 0.049
- Gainsboro #DCDCDC ΔE 0.049
- Light Gray #D3D3D3 ΔE 0.050
- Pale Lilac #E4CBFF ΔE 0.052
- Lavender #E6E6FA ΔE 0.053
- Light Periwinkle #C1C6FC ΔE 0.054
Use #C9D9F9 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.