#C9DFEE
Closest named color: Gainsboro (#DCDCDC). oklch(89.2% 0.031 237.6), rgb(201, 223, 238).
Aa
Black text reads best on this color (15.27:1).
About this color
#C9DFEE is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.031 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Gainsboro (#DCDCDC), ΔE 0.031 away. Black text reads best on it, at 15.27:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Gainsboro (#DCDCDC) |
| Black text | 15.27:1 |
| White text | 1.37:1 |
Values
| HEX | #C9DFEE |
| RGB | rgb(201, 223, 238) |
| HSL | hsl(204, 52%, 86%) |
| OKLCH | oklch(89.2% 0.031 237.6) |
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 #C9DFEE | 1.37:1 | Fails | Lc -20.9 | Dividers and decoration only |
| Black text on #C9DFEE | 15.27:1 | AAA | Lc 85.4 | Fine for body text |
| #C9DFEE text on white | 1.37:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #C9DFEE text on black | 15.27:1 | AAA | Lc -85.2 | 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
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200 (this color)
#C9DFEE
oklch(89.2% 0.031 237.6)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#7AA7C4
oklch(70.7% 0.064 237.1)
-
Step 500
500
#5791B5
oklch(63.1% 0.082 237.2)
-
Step 600
600
#3A7BA1
oklch(55.7% 0.089 237)
-
Step 700
700
#2B678A
oklch(49% 0.083 237.5)
-
Step 800
800
#255470
oklch(42.6% 0.069 237.6)
-
Step 900
900
#24465B
oklch(37.8% 0.054 237.6)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#C9DFEE 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) | #D9DEEF | 0.021 |
| Deuteranopia (no green cones) | #D3DAEE | 0.017 |
| Tritanopia (no blue cones) | #BFE3E4 | 0.024 |
| Achromatopsia (no color) | #DCDCDC | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DFEE
#C9DFEE
oklch(89.2% 0.031 237.6)
- #ECD7C8
#ECD7C8
oklch(89.2% 0.031 57.9)
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 #C9DFEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gainsboro #DCDCDC ΔE 0.031
- Cadet Gray #CED4DA ΔE 0.033
- Pale Silver #D8E2DC ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.033
- Platinum #E0E1DD ΔE 0.038
- Light Gray #D3D3D3 ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.042
- Lavender #E6E6FA ΔE 0.046
Use #C9DFEE 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.