#C4E9F4
Closest named color: Diamond (#B9F2FF). oklch(91.1% 0.041 217.7), rgb(196, 233, 244).
Aa
Black text reads best on this color (16.30:1).
About this color
#C4E9F4 is a very light, muted teal or cyan. In OKLCH its lightness is 91%, its chroma 0.041 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.025 away. Black text reads best on it, at 16.30:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.30:1 |
| White text | 1.28:1 |
Values
| HEX | #C4E9F4 |
| RGB | rgb(196, 233, 244) |
| HSL | hsl(194, 69%, 86%) |
| OKLCH | oklch(91.1% 0.041 217.7) |
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 #C4E9F4 | 1.28:1 | Fails | Lc -16.4 | Dividers and decoration only |
| Black text on #C4E9F4 | 16.30:1 | AAA | Lc 89.4 | Fine for body text |
| #C4E9F4 text on white | 1.28:1 | Fails | Lc 14.3 | Not readable |
| #C4E9F4 text on black | 16.30:1 | AAA | Lc -89.6 | 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 100.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100 (this color)
#C4E9F4
oklch(91.1% 0.041 217.7)
-
Step 200
200
#C4DEE6
oklch(88.4% 0.03 218.2)
-
Step 300
300
#9ACAD7
oklch(81% 0.053 216.2)
-
Step 400
400
#5DAEC4
oklch(70.8% 0.085 217.6)
-
Step 500
500
#1899B5
oklch(63.2% 0.109 217.7)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
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
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#042C35
oklch(27.1% 0.045 216.7)
#C4E9F4 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) | #E1E6F5 | 0.036 |
| Deuteranopia (no green cones) | #DAE0F4 | 0.034 |
| Tritanopia (no blue cones) | #B6EDEC | 0.024 |
| Achromatopsia (no color) | #E3E3E3 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4E9F4
#C4E9F4
oklch(91.1% 0.041 217.7)
- #FBD9CE
#FBD9CE
oklch(91.1% 0.041 38.7)
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 #C4E9F4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.025
- Pale Turquoise #AFEEEE ΔE 0.029
- Pale Sky Blue #BDF6FE ΔE 0.032
- Pale Silver #D8E2DC ΔE 0.037
- Powder Blue #B0E0E6 ΔE 0.038
- Platinum #E0E1DD ΔE 0.043
- Gainsboro #DCDCDC ΔE 0.045
- Lavender #E6E6FA ΔE 0.045
Use #C4E9F4 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.