#C4E9FF
Closest named color: Diamond (#B9F2FF). oklch(91.5% 0.049 234.2), rgb(196, 233, 255).
Aa
Black text reads best on this color (16.44:1).
About this color
#C4E9FF is a very light, muted blue. In OKLCH its lightness is 91%, its chroma 0.049 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.026 away. Black text reads best on it, at 16.44:1.
| Hue family | Blues |
| Lightness | very light (91%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.44:1 |
| White text | 1.27:1 |
Values
| HEX | #C4E9FF |
| RGB | rgb(196, 233, 255) |
| HSL | hsl(202, 100%, 88%) |
| OKLCH | oklch(91.5% 0.049 234.2) |
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 #C4E9FF | 1.27:1 | Fails | Lc -15.8 | Dividers and decoration only |
| Black text on #C4E9FF | 16.44:1 | AAA | Lc 89.9 | Fine for body text |
| #C4E9FF text on white | 1.27:1 | Fails | Lc 13.7 | Not readable |
| #C4E9FF text on black | 16.44:1 | AAA | Lc -90.1 | Preferred 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100 (this color)
#C4E9FF
oklch(91.5% 0.049 234.2)
-
Step 200
200
#C4DEED
oklch(88.6% 0.035 233.1)
-
Step 300
300
#99C8E4
oklch(80.9% 0.063 234.7)
-
Step 400
400
#5BABD6
oklch(70.8% 0.101 234.2)
-
Step 500
500
#1295CB
oklch(63.2% 0.129 234)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005678
oklch(42.7% 0.089 233.9)
-
Step 900
900
#004865
oklch(37.8% 0.079 233.7)
-
Step 950
950
#032A3C
oklch(26.9% 0.053 233.9)
#C4E9FF 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) | #DFE8FF | 0.033 |
| Deuteranopia (no green cones) | #D7E1FF | 0.030 |
| Tritanopia (no blue cones) | #B3EFF0 | 0.036 |
| Achromatopsia (no color) | #E4E4E4 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4E9FF
#C4E9FF
oklch(91.5% 0.049 234.2)
- #FEDBC5
#FEDBC5
oklch(91.5% 0.049 54.1)
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 #C4E9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.026
- Pale Sky Blue #BDF6FE ΔE 0.035
- Pale Turquoise #AFEEEE ΔE 0.040
- Lavender #E6E6FA ΔE 0.042
- Powder Blue #B0E0E6 ΔE 0.046
- Pale Silver #D8E2DC ΔE 0.048
- Robin's Egg Blue #98EFF9 ΔE 0.050
- Platinum #E0E1DD ΔE 0.052
Use #C4E9FF 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.