#CEF4EE
Closest named color: Duck Egg Blue (#C3FBF4). oklch(93.9% 0.04 184.9), rgb(206, 244, 238).
Aa
Black text reads best on this color (17.79:1).
About this color
#CEF4EE is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.040 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.020 away. Black text reads best on it, at 17.79:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 17.79:1 |
| White text | 1.17:1 |
Values
| HEX | #CEF4EE |
| RGB | rgb(206, 244, 238) |
| HSL | hsl(171, 63%, 88%) |
| OKLCH | oklch(93.9% 0.04 184.9) |
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 #CEF4EE | 1.17:1 | Fails | Lc -10.2 | Not readable |
| Black text on #CEF4EE | 17.79:1 | AAA | Lc 94.9 | Preferred for body text |
| #CEF4EE text on white | 1.17:1 | Fails | Lc 8.7 | Not readable |
| #CEF4EE text on black | 17.79:1 | AAA | Lc -95.6 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100 (this color)
#CEF4EE
oklch(93.9% 0.04 184.9)
-
Step 200
200
#C5E0DB
oklch(88.5% 0.029 183.3)
-
Step 300
300
#9CCCC5
oklch(80.9% 0.051 185.2)
-
Step 400
400
#5FB2A7
oklch(70.8% 0.083 184.4)
-
Step 500
500
#1D9E92
oklch(63.2% 0.106 185.1)
-
Step 600
600
#00867B
oklch(55.7% 0.098 184.8)
-
Step 700
700
#007067
oklch(49% 0.086 185.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#052D29
oklch(26.9% 0.044 185.1)
#CEF4EE 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) | #F0EFEE | 0.043 |
| Deuteranopia (no green cones) | #E8EAEF | 0.040 |
| Tritanopia (no blue cones) | #C4F6F2 | 0.012 |
| Achromatopsia (no color) | #ECECEC | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CEF4EE
#CEF4EE
oklch(93.9% 0.04 184.9)
- #FFE2E8
#FFE2E8
oklch(93.8% 0.033 3.7)
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 #CEF4EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.020
- Pale Sky Blue #BDF6FE ΔE 0.026
- Eggshell Blue #C4FFF7 ΔE 0.028
- Light Light Blue #CAFFFB ΔE 0.028
- Pale Blue #D0FEFE ΔE 0.029
- Ice #D6FFFA ΔE 0.031
- Really Light Blue #D4FFFF ΔE 0.033
- Very Pale Blue #D6FFFE ΔE 0.033
Use #CEF4EE 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.