#CDF3FB
Closest named color: Pale Sky Blue (#BDF6FE). oklch(94% 0.041 211.8), rgb(205, 243, 251).
Aa
Black text reads best on this color (17.80:1).
About this color
#CDF3FB is a very light, muted teal or cyan. In OKLCH its lightness is 94%, its chroma 0.041 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Pale Sky Blue (#BDF6FE), ΔE 0.018 away. Black text reads best on it, at 17.80:1.
| Hue family | Teals and cyans |
| Lightness | very light (94%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Pale Sky Blue (#BDF6FE) |
| Black text | 17.80:1 |
| White text | 1.17:1 |
Values
| HEX | #CDF3FB |
| RGB | rgb(205, 243, 251) |
| HSL | hsl(190, 85%, 89%) |
| OKLCH | oklch(94% 0.041 211.8) |
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 #CDF3FB | 1.17:1 | Fails | Lc -10.1 | Not readable |
| Black text on #CDF3FB | 17.80:1 | AAA | Lc 94.9 | Preferred for body text |
| #CDF3FB text on white | 1.17:1 | Fails | Lc 8.6 | Not readable |
| #CDF3FB text on black | 17.80:1 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100 (this color)
#CDF3FB
oklch(94% 0.041 211.8)
-
Step 200
200
#C4DFE4
oklch(88.5% 0.029 210)
-
Step 300
300
#9ACAD4
oklch(80.9% 0.052 211.8)
-
Step 400
400
#5CAFBF
oklch(70.8% 0.084 211.7)
-
Step 500
500
#129AAF
oklch(63.1% 0.107 212)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005966
oklch(42.6% 0.074 211.8)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#042C33
oklch(27% 0.044 212.2)
#CDF3FB 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) | #ECF0FC | 0.039 |
| Deuteranopia (no green cones) | #E4EAFB | 0.035 |
| Tritanopia (no blue cones) | #C0F7F5 | 0.021 |
| Achromatopsia (no color) | #ECECEC | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDF3FB
#CDF3FB
oklch(94% 0.041 211.8)
- #FFE4DF
#FFE4DF
oklch(93.9% 0.031 30.2)
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 #CDF3FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pale Sky Blue #BDF6FE ΔE 0.018
- Diamond #B9F2FF ΔE 0.023
- Duck Egg Blue #C3FBF4 ΔE 0.028
- Pale Blue #D0FEFE ΔE 0.029
- Light Light Blue #CAFFFB ΔE 0.032
- Really Light Blue #D4FFFF ΔE 0.033
- Very Light Blue #D5FFFF ΔE 0.033
- Very Pale Blue #D6FFFE ΔE 0.034
Use #CDF3FB 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.