#C9DBFB
Closest named color: Cadet Gray (#CED4DA). oklch(88.8% 0.048 262), rgb(201, 219, 251).
Aa
Black text reads best on this color (15.00:1).
About this color
#C9DBFB is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.048 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.044 away. Black text reads best on it, at 15.00:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 15.00:1 |
| White text | 1.39:1 |
Values
| HEX | #C9DBFB |
| RGB | rgb(201, 219, 251) |
| HSL | hsl(218, 86%, 89%) |
| OKLCH | oklch(88.8% 0.048 262) |
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 #C9DBFB | 1.39:1 | Fails | Lc -22.1 | Dividers and decoration only |
| Black text on #C9DBFB | 15.00:1 | AAA | Lc 84.3 | Fine for body text |
| #C9DBFB text on white | 1.39:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #C9DBFB text on black | 15.00:1 | AAA | Lc -84.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200 (this color)
#C9DBFB
oklch(88.8% 0.048 262)
-
Step 300
300
#ABC1EA
oklch(80.8% 0.063 262.8)
-
Step 400
400
#7EA1DF
oklch(70.8% 0.099 261.5)
-
Step 500
500
#5E88D6
oklch(63.1% 0.127 261.9)
-
Step 600
600
#4570C3
oklch(55.6% 0.138 262.2)
-
Step 700
700
#365EA9
oklch(49.2% 0.128 261.7)
-
Step 800
800
#2D4D89
oklch(42.8% 0.107 261.8)
-
Step 900
900
#28406D
oklch(37.6% 0.083 262)
-
Step 950
950
#182640
oklch(27% 0.052 262)
#C9DBFB 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) | #D1DDFD | 0.012 |
| Deuteranopia (no green cones) | #CCD8FA | 0.008 |
| Tritanopia (no blue cones) | #BDE1E5 | 0.042 |
| Achromatopsia (no color) | #DADADA | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DBFB
#C9DBFB
oklch(88.8% 0.048 262)
- #EAD8B7
#EAD8B7
oklch(88.8% 0.048 82.7)
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 #C9DBFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.047
- Powder Blue #B0E0E6 ΔE 0.048
- Gainsboro #DCDCDC ΔE 0.049
- Lavender #E6E6FA ΔE 0.050
- Light Gray #D3D3D3 ΔE 0.053
- Pale Lilac #E4CBFF ΔE 0.054
- Pale Silver #D8E2DC ΔE 0.055
Use #C9DBFB 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.