#CEF4FB
Closest named color: Pale Sky Blue (#BDF6FE). oklch(94.2% 0.04 210), rgb(206, 244, 251).
Aa
Black text reads best on this color (17.95:1).
About this color
#CEF4FB is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.040 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Sky Blue (#BDF6FE), ΔE 0.019 away. Black text reads best on it, at 17.95:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Pale Sky Blue (#BDF6FE) |
| Black text | 17.95:1 |
| White text | 1.16:1 |
Values
| HEX | #CEF4FB |
| RGB | rgb(206, 244, 251) |
| HSL | hsl(189, 85%, 90%) |
| OKLCH | oklch(94.2% 0.04 210) |
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 #CEF4FB | 1.16:1 | Fails | Lc -9.5 | Not readable |
| Black text on #CEF4FB | 17.95:1 | AAA | Lc 95.5 | Preferred for body text |
| #CEF4FB text on white | 1.16:1 | Fails | Lc 8.1 | Not readable |
| #CEF4FB text on black | 17.95:1 | AAA | Lc -96.2 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100 (this color)
#CEF4FB
oklch(94.2% 0.04 210)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#9ACAD3
oklch(80.8% 0.052 210.3)
-
Step 400
400
#5CAFBD
oklch(70.7% 0.083 209.7)
-
Step 500
500
#139AAD
oklch(63% 0.106 210.5)
-
Step 600
600
#008292
oklch(55.6% 0.096 209.8)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#005A65
oklch(42.8% 0.074 209.1)
-
Step 900
900
#004B55
oklch(37.8% 0.065 210)
-
Step 950
950
#042C32
oklch(27% 0.044 209.8)
#CEF4FB 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) | #EDF1FB | 0.038 |
| Deuteranopia (no green cones) | #E5EBFB | 0.035 |
| Tritanopia (no blue cones) | #C1F8F6 | 0.020 |
| Achromatopsia (no color) | #EDEDED | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CEF4FB
#CEF4FB
oklch(94.2% 0.04 210)
- #FFE5E1
#FFE5E1
oklch(94.2% 0.029 28.1)
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 #CEF4FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Sky Blue #BDF6FE ΔE 0.019
- Diamond #B9F2FF ΔE 0.026
- Pale Blue #D0FEFE ΔE 0.026
- Duck Egg Blue #C3FBF4 ΔE 0.026
- Light Light Blue #CAFFFB ΔE 0.029
- Really Light Blue #D4FFFF ΔE 0.030
- Very Light Blue #D5FFFF ΔE 0.030
- Very Pale Blue #D6FFFE ΔE 0.031
Use #CEF4FB 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.