#C4EEF3
Closest named color: Diamond (#B9F2FF). oklch(92.1% 0.044 205.3), rgb(196, 238, 243).
Aa
Black text reads best on this color (16.87:1).
About this color
#C4EEF3 is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.044 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.019 away. Black text reads best on it, at 16.87:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.87:1 |
| White text | 1.24:1 |
Values
| HEX | #C4EEF3 |
| RGB | rgb(196, 238, 243) |
| HSL | hsl(186, 66%, 86%) |
| OKLCH | oklch(92.1% 0.044 205.3) |
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 #C4EEF3 | 1.24:1 | Fails | Lc -14.0 | Not readable |
| Black text on #C4EEF3 | 16.87:1 | AAA | Lc 91.5 | Preferred for body text |
| #C4EEF3 text on white | 1.24:1 | Fails | Lc 12.1 | Not readable |
| #C4EEF3 text on black | 16.87:1 | AAA | Lc -91.9 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100 (this color)
#C4EEF3
oklch(92.1% 0.044 205.3)
-
Step 200
200
#C2E0E3
oklch(88.6% 0.032 204)
-
Step 300
300
#96CCD2
oklch(81% 0.056 204.7)
-
Step 400
400
#52B1BC
oklch(70.8% 0.09 205.6)
-
Step 500
500
#009CA9
oklch(63.2% 0.108 205.2)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E77
oklch(49.1% 0.084 204.7)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#004B52
oklch(37.7% 0.064 205.5)
-
Step 950
950
#002D31
oklch(27.1% 0.046 204.1)
#C4EEF3 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) | #E7EAF3 | 0.044 |
| Deuteranopia (no green cones) | #DFE4F3 | 0.040 |
| Tritanopia (no blue cones) | #B6F2EF | 0.020 |
| Achromatopsia (no color) | #E6E6E6 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4EEF3
#C4EEF3
oklch(92.1% 0.044 205.3)
- #FFDBD7
#FFDBD7
oklch(92% 0.041 25.4)
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 #C4EEF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.019
- Pale Sky Blue #BDF6FE ΔE 0.022
- Pale Turquoise #AFEEEE ΔE 0.025
- Duck Egg Blue #C3FBF4 ΔE 0.034
- Pale Silver #D8E2DC ΔE 0.040
- Pale Cyan #B7FFFA ΔE 0.043
- Eggshell Blue #C4FFF7 ΔE 0.044
- Light Light Blue #CAFFFB ΔE 0.045
Use #C4EEF3 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.