#C0E9FF
Closest named color: Diamond (#B9F2FF). oklch(91.2% 0.052 231.5), rgb(192, 233, 255).
Aa
Black text reads best on this color (16.34:1).
About this color
#C0E9FF is a very light, muted blue. In OKLCH its lightness is 91%, its chroma 0.052 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.024 away. Black text reads best on it, at 16.34:1.
| Hue family | Blues |
| Lightness | very light (91%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.34:1 |
| White text | 1.28:1 |
Values
| HEX | #C0E9FF |
| RGB | rgb(192, 233, 255) |
| HSL | hsl(201, 100%, 88%) |
| OKLCH | oklch(91.2% 0.052 231.5) |
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 #C0E9FF | 1.28:1 | Fails | Lc -16.3 | Dividers and decoration only |
| Black text on #C0E9FF | 16.34:1 | AAA | Lc 89.5 | Fine for body text |
| #C0E9FF text on white | 1.28:1 | Fails | Lc 14.1 | Not readable |
| #C0E9FF text on black | 16.34:1 | AAA | Lc -89.7 | 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 100.
-
Step 50
50
#F0F7FA
oklch(97.2% 0.008 225.1)
-
Step 100
100 (this color)
#C0E9FF
oklch(91.2% 0.052 231.5)
-
Step 200
200
#C1DEEE
oklch(88.4% 0.038 232)
-
Step 300
300
#95C9E5
oklch(80.9% 0.067 232.2)
-
Step 400
400
#51ACD8
oklch(70.7% 0.108 232.1)
-
Step 500
500
#0096C9
oklch(63.2% 0.128 231.5)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8F
oklch(49.2% 0.1 231.3)
-
Step 800
800
#005776
oklch(42.8% 0.087 231.2)
-
Step 900
900
#004863
oklch(37.7% 0.077 231.8)
-
Step 950
950
#002B3C
oklch(27.1% 0.054 230.4)
#C0E9FF 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) | #DEE7FF | 0.037 |
| Deuteranopia (no green cones) | #D5E0FF | 0.033 |
| Tritanopia (no blue cones) | #ADEFF0 | 0.037 |
| Achromatopsia (no color) | #E3E3E3 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C0E9FF
#C0E9FF
oklch(91.2% 0.052 231.5)
- #FFD9C4
#FFD9C4
oklch(91.2% 0.051 50.7)
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 #C0E9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.024
- Pale Sky Blue #BDF6FE ΔE 0.035
- Pale Turquoise #AFEEEE ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.043
- Robin's Egg Blue #98EFF9 ΔE 0.046
- Lavender #E6E6FA ΔE 0.047
- Pale Silver #D8E2DC ΔE 0.050
- Platinum #E0E1DD ΔE 0.055
Use #C0E9FF 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.