#C4E3FB
Closest named color: Diamond (#B9F2FF). oklch(90.1% 0.047 241.4), rgb(196, 227, 251).
Aa
Black text reads best on this color (15.72:1).
About this color
#C4E3FB is a very light, muted blue. In OKLCH its lightness is 90%, its chroma 0.047 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.039 away. Black text reads best on it, at 15.72:1.
| Hue family | Blues |
| Lightness | very light (90%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 15.72:1 |
| White text | 1.33:1 |
Values
| HEX | #C4E3FB |
| RGB | rgb(196, 227, 251) |
| HSL | hsl(206, 87%, 88%) |
| OKLCH | oklch(90.1% 0.047 241.4) |
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 #C4E3FB | 1.33:1 | Fails | Lc -18.9 | Dividers and decoration only |
| Black text on #C4E3FB | 15.72:1 | AAA | Lc 87.1 | Fine for body text |
| #C4E3FB text on white | 1.33:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #C4E3FB text on black | 15.72:1 | AAA | Lc -87.2 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200 (this color)
#C4E3FB
oklch(90.1% 0.047 241.4)
-
Step 300
300
#9FC6E4
oklch(80.9% 0.06 241.6)
-
Step 400
400
#67A8D7
oklch(70.7% 0.096 241.3)
-
Step 500
500
#3791CC
oklch(63% 0.122 241.5)
-
Step 600
600
#007BB8
oklch(55.7% 0.13 241.1)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#0E4668
oklch(37.7% 0.08 241.3)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#C4E3FB 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) | #D9E2FC | 0.026 |
| Deuteranopia (no green cones) | #D2DCFB | 0.024 |
| Tritanopia (no blue cones) | #B5E9EB | 0.036 |
| Achromatopsia (no color) | #DFDFDF | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4E3FB
#C4E3FB
oklch(90.1% 0.047 241.4)
- #F6D8C0
#F6D8C0
oklch(90.1% 0.046 60.8)
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 #C4E3FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.039
- Powder Blue #B0E0E6 ΔE 0.039
- Lavender #E6E6FA ΔE 0.045
- Pale Turquoise #AFEEEE ΔE 0.045
- Pale Silver #D8E2DC ΔE 0.047
- Gainsboro #DCDCDC ΔE 0.047
- Light Blue #ADD8E6 ΔE 0.048
- Pale Sky Blue #BDF6FE ΔE 0.049
Use #C4E3FB 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.