#C4E9F9
Closest named color: Diamond (#B9F2FF). oklch(91.3% 0.044 225.9), rgb(196, 233, 249).
Aa
Black text reads best on this color (16.37:1).
About this color
#C4E9F9 is a very light, muted teal or cyan. In OKLCH its lightness is 91%, its chroma 0.044 and its hue 226°. 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 16.37:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.37:1 |
| White text | 1.28:1 |
Values
| HEX | #C4E9F9 |
| RGB | rgb(196, 233, 249) |
| HSL | hsl(198, 82%, 87%) |
| OKLCH | oklch(91.3% 0.044 225.9) |
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 #C4E9F9 | 1.28:1 | Fails | Lc -16.2 | Dividers and decoration only |
| Black text on #C4E9F9 | 16.37:1 | AAA | Lc 89.6 | Fine for body text |
| #C4E9F9 text on white | 1.28:1 | Fails | Lc 14.0 | Not readable |
| #C4E9F9 text on black | 16.37:1 | AAA | Lc -89.8 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100 (this color)
#C4E9F9
oklch(91.3% 0.044 225.9)
-
Step 200
200
#C4DEE9
oklch(88.5% 0.032 225.1)
-
Step 300
300
#9AC9DD
oklch(80.9% 0.057 225.9)
-
Step 400
400
#5CACCC
oklch(70.6% 0.091 226.4)
-
Step 500
500
#1597BF
oklch(63.1% 0.117 226)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005771
oklch(42.6% 0.082 226.6)
-
Step 900
900
#00495F
oklch(37.8% 0.072 226.2)
-
Step 950
950
#042B38
oklch(27% 0.048 225.4)
#C4E9F9 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) | #E0E7FA | 0.035 |
| Deuteranopia (no green cones) | #D8E0F9 | 0.032 |
| Tritanopia (no blue cones) | #B5EEEE | 0.029 |
| Achromatopsia (no color) | #E3E3E3 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4E9F9
#C4E9F9
oklch(91.3% 0.044 225.9)
- #FDDACA
#FDDACA
oklch(91.3% 0.045 46)
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 #C4E9F9, 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 0.033
- Pale Turquoise #AFEEEE ΔE 0.034
- Powder Blue #B0E0E6 ΔE 0.041
- Pale Silver #D8E2DC ΔE 0.042
- Lavender #E6E6FA ΔE 0.043
- Platinum #E0E1DD ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.048
Use #C4E9F9 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.