#CDEFEB
Closest named color: Pale Sky Blue (#BDF6FE). oklch(92.7% 0.036 187.9), rgb(205, 239, 235).
Aa
Black text reads best on this color (17.14:1).
About this color
#CDEFEB is a very light, muted teal or cyan. In OKLCH its lightness is 93%, its chroma 0.036 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Sky Blue (#BDF6FE), ΔE 0.029 away. Black text reads best on it, at 17.14:1.
| Hue family | Teals and cyans |
| Lightness | very light (93%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Pale Sky Blue (#BDF6FE) |
| Black text | 17.14:1 |
| White text | 1.22:1 |
Values
| HEX | #CDEFEB |
| RGB | rgb(205, 239, 235) |
| HSL | hsl(173, 52%, 87%) |
| OKLCH | oklch(92.7% 0.036 187.9) |
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 #CDEFEB | 1.22:1 | Fails | Lc -12.9 | Not readable |
| Black text on #CDEFEB | 17.14:1 | AAA | Lc 92.5 | Preferred for body text |
| #CDEFEB text on white | 1.22:1 | Fails | Lc 11.1 | Not readable |
| #CDEFEB text on black | 17.14:1 | AAA | Lc -93.0 | 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)
#CDEFEB
oklch(92.7% 0.036 187.9)
-
Step 200
200
#C7DFDC
oklch(88.5% 0.026 187.6)
-
Step 300
300
#A0CBC6
oklch(81% 0.046 187.5)
-
Step 400
400
#67B0A9
oklch(70.7% 0.074 187.8)
-
Step 500
500
#349C94
oklch(63.2% 0.094 187.8)
-
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
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900
#0B4C48
oklch(37.8% 0.061 188.5)
-
Step 950
950
#0B2D2A
oklch(27.2% 0.039 187)
#CDEFEB 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) | #EBEBEB | 0.038 |
| Deuteranopia (no green cones) | #E4E6EB | 0.035 |
| Tritanopia (no blue cones) | #C4F1EE | 0.011 |
| Achromatopsia (no color) | #E8E8E8 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDEFEB
#CDEFEB
oklch(92.7% 0.036 187.9)
- #FDDDE2
#FDDDE2
oklch(92.5% 0.036 7.1)
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 #CDEFEB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Sky Blue #BDF6FE ΔE 0.029
- Duck Egg Blue #C3FBF4 ΔE 0.030
- Diamond #B9F2FF ΔE 0.032
- Pale Silver #D8E2DC ΔE 0.034
- Pale Turquoise #AFEEEE ΔE 0.034
- Platinum #E0E1DD ΔE 0.039
- Eggshell Blue #C4FFF7 ΔE 0.040
- Light Light Blue #CAFFFB ΔE 0.040
Use #CDEFEB 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.