#CEF3EF
Closest named color: Duck Egg Blue (#C3FBF4). oklch(93.7% 0.039 188.5), rgb(206, 243, 239).
Aa
Black text reads best on this color (17.69:1).
About this color
#CEF3EF is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.039 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.022 away. Black text reads best on it, at 17.69:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.039) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 17.69:1 |
| White text | 1.18:1 |
Values
| HEX | #CEF3EF |
| RGB | rgb(206, 243, 239) |
| HSL | hsl(174, 61%, 88%) |
| OKLCH | oklch(93.7% 0.039 188.5) |
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 #CEF3EF | 1.18:1 | Fails | Lc -10.6 | Not readable |
| Black text on #CEF3EF | 17.69:1 | AAA | Lc 94.5 | Preferred for body text |
| #CEF3EF text on white | 1.18:1 | Fails | Lc 9.1 | Not readable |
| #CEF3EF text on black | 17.69:1 | AAA | Lc -95.2 | 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)
#CEF3EF
oklch(93.7% 0.039 188.5)
-
Step 200
200
#C6DFDC
oklch(88.4% 0.027 187.9)
-
Step 300
300
#9CCBC7
oklch(80.8% 0.05 189.7)
-
Step 400
400
#61B1AA
oklch(70.7% 0.08 188.2)
-
Step 500
500
#239D95
oklch(63.1% 0.102 188.1)
-
Step 600
600
#00857E
oklch(55.6% 0.097 188.3)
-
Step 700
700
#00706A
oklch(49.1% 0.085 188.3)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C48
oklch(37.6% 0.065 188.7)
-
Step 950
950
#062D2A
oklch(27% 0.042 187.4)
#CEF3EF 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) | #EFEFEF | 0.042 |
| Deuteranopia (no green cones) | #E7E9F0 | 0.039 |
| Tritanopia (no blue cones) | #C4F5F2 | 0.012 |
| Achromatopsia (no color) | #EBEBEB | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CEF3EF
#CEF3EF
oklch(93.7% 0.039 188.5)
- #FFE2E6
#FFE2E6
oklch(93.8% 0.032 8.3)
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 #CEF3EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.022
- Pale Sky Blue #BDF6FE ΔE 0.025
- Light Light Blue #CAFFFB ΔE 0.030
- Pale Blue #D0FEFE ΔE 0.030
- Eggshell Blue #C4FFF7 ΔE 0.030
- Diamond #B9F2FF ΔE 0.032
- Ice #D6FFFA ΔE 0.033
- Really Light Blue #D4FFFF ΔE 0.034
Use #CEF3EF 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.