#C9DFEF
Closest named color: Gainsboro (#DCDCDC). oklch(89.2% 0.032 239.4), rgb(201, 223, 239).
Aa
Black text reads best on this color (15.28:1).
About this color
#C9DFEF is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.032 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Gainsboro (#DCDCDC), ΔE 0.032 away. Black text reads best on it, at 15.28:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Gainsboro (#DCDCDC) |
| Black text | 15.28:1 |
| White text | 1.37:1 |
Values
| HEX | #C9DFEF |
| RGB | rgb(201, 223, 239) |
| HSL | hsl(205, 54%, 86%) |
| OKLCH | oklch(89.2% 0.032 239.4) |
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 #C9DFEF | 1.37:1 | Fails | Lc -20.9 | Dividers and decoration only |
| Black text on #C9DFEF | 15.28:1 | AAA | Lc 85.4 | Fine for body text |
| #C9DFEF text on white | 1.37:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #C9DFEF text on black | 15.28:1 | AAA | Lc -85.3 | 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)
#C9DFEF
oklch(89.2% 0.032 239.4)
-
Step 300
300
#A9C5D9
oklch(80.9% 0.041 239.1)
-
Step 400
400
#7AA7C6
oklch(70.7% 0.066 239)
-
Step 500
500
#5691B7
oklch(63.2% 0.084 238.3)
-
Step 600
600
#3A7AA3
oklch(55.5% 0.091 239.4)
-
Step 700
700
#2B678C
oklch(49.1% 0.086 239)
-
Step 800
800
#255472
oklch(42.7% 0.071 239.5)
-
Step 900
900
#24455C
oklch(37.6% 0.055 240.8)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#C9DFEF 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) | #D8DEF0 | 0.019 |
| Deuteranopia (no green cones) | #D3DAEF | 0.017 |
| Tritanopia (no blue cones) | #BFE3E4 | 0.025 |
| Achromatopsia (no color) | #DCDCDC | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DFEF
#C9DFEF
oklch(89.2% 0.032 239.4)
- #ECD7C7
#ECD7C7
oklch(89.2% 0.032 59.7)
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 #C9DFEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gainsboro #DCDCDC ΔE 0.032
- Cadet Gray #CED4DA ΔE 0.033
- Powder Blue #B0E0E6 ΔE 0.034
- Pale Silver #D8E2DC ΔE 0.034
- Platinum #E0E1DD ΔE 0.039
- Light Gray #D3D3D3 ΔE 0.041
- Light Blue #ADD8E6 ΔE 0.042
- Lavender #E6E6FA ΔE 0.045
Use #C9DFEF 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.