#C4EEFB
Closest named color: Diamond (#B9F2FF). oklch(92.4% 0.047 218.5), rgb(196, 238, 251).
Aa
Black text reads best on this color (16.96:1).
About this color
#C4EEFB is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.047 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.015 away. Black text reads best on it, at 16.96:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.96:1 |
| White text | 1.23:1 |
Values
| HEX | #C4EEFB |
| RGB | rgb(196, 238, 251) |
| HSL | hsl(194, 87%, 88%) |
| OKLCH | oklch(92.4% 0.047 218.5) |
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 #C4EEFB | 1.23:1 | Fails | Lc -13.6 | Not readable |
| Black text on #C4EEFB | 16.96:1 | AAA | Lc 91.8 | Preferred for body text |
| #C4EEFB text on white | 1.23:1 | Fails | Lc 11.7 | Not readable |
| #C4EEFB text on black | 16.96:1 | AAA | Lc -92.3 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100 (this color)
#C4EEFB
oklch(92.4% 0.047 218.5)
-
Step 200
200
#C2DFE8
oklch(88.5% 0.033 218.4)
-
Step 300
300
#95CBDB
oklch(81% 0.06 218.1)
-
Step 400
400
#50AFC9
oklch(70.7% 0.096 218.5)
-
Step 500
500
#0099B7
oklch(63.1% 0.114 218.3)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950
#002C36
oklch(27% 0.048 217.4)
#C4EEFB 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) | #E5EBFC | 0.041 |
| Deuteranopia (no green cones) | #DCE4FB | 0.037 |
| Tritanopia (no blue cones) | #B4F3F2 | 0.028 |
| Achromatopsia (no color) | #E7E7E7 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4EEFB
#C4EEFB
oklch(92.4% 0.047 218.5)
- #FFDDD3
#FFDDD3
oklch(92.3% 0.04 37)
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 #C4EEFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.015
- Pale Sky Blue #BDF6FE ΔE 0.021
- Pale Turquoise #AFEEEE ΔE 0.032
- Duck Egg Blue #C3FBF4 ΔE 0.039
- Lavender #E6E6FA ΔE 0.045
- Pale Blue #D0FEFE ΔE 0.045
- Pale Silver #D8E2DC ΔE 0.046
- Pale Cyan #B7FFFA ΔE 0.046
Use #C4EEFB 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.