#C4E4FB
Closest named color: Diamond (#B9F2FF). oklch(90.3% 0.046 239.3), rgb(196, 228, 251).
Aa
Black text reads best on this color (15.83:1).
About this color
#C4E4FB is a very light, muted blue. In OKLCH its lightness is 90%, its chroma 0.046 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.036 away. Black text reads best on it, at 15.83:1.
| Hue family | Blues |
| Lightness | very light (90%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 15.83:1 |
| White text | 1.32:1 |
Values
| HEX | #C4E4FB |
| RGB | rgb(196, 228, 251) |
| HSL | hsl(205, 87%, 88%) |
| OKLCH | oklch(90.3% 0.046 239.3) |
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 #C4E4FB | 1.32:1 | Fails | Lc -18.4 | Dividers and decoration only |
| Black text on #C4E4FB | 15.83:1 | AAA | Lc 87.6 | Fine for body text |
| #C4E4FB text on white | 1.32:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #C4E4FB text on black | 15.83:1 | AAA | Lc -87.6 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200 (this color)
#C4E4FB
oklch(90.3% 0.046 239.3)
-
Step 300
300
#9EC7E3
oklch(81% 0.059 238.3)
-
Step 400
400
#66A9D6
oklch(70.8% 0.095 239.4)
-
Step 500
500
#3392CB
oklch(63.1% 0.122 239.6)
-
Step 600
600
#007BB4
oklch(55.5% 0.126 239.3)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#00557E
oklch(42.8% 0.097 239.2)
-
Step 900
900
#0B4667
oklch(37.6% 0.08 239.8)
-
Step 950
950
#0A293C
oklch(26.9% 0.05 239.7)
#C4E4FB 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) | #DAE3FC | 0.028 |
| Deuteranopia (no green cones) | #D3DDFB | 0.025 |
| Tritanopia (no blue cones) | #B5EAEB | 0.036 |
| Achromatopsia (no color) | #E0E0E0 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4E4FB
#C4E4FB
oklch(90.3% 0.046 239.3)
- #F7D8C1
#F7D8C1
oklch(90.2% 0.046 58.7)
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 #C4E4FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.036
- Powder Blue #B0E0E6 ΔE 0.040
- Pale Turquoise #AFEEEE ΔE 0.043
- Lavender #E6E6FA ΔE 0.044
- Pale Silver #D8E2DC ΔE 0.046
- Pale Sky Blue #BDF6FE ΔE 0.046
- Gainsboro #DCDCDC ΔE 0.047
- Platinum #E0E1DD ΔE 0.050
Use #C4E4FB 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.