#C4FAFB
Closest named color: Duck Egg Blue (#C3FBF4). oklch(94.9% 0.055 197.7), rgb(196, 250, 251).
Aa
Black text reads best on this color (18.41:1).
About this color
#C4FAFB is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.055 and its hue 198°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.011 away. Black text reads best on it, at 18.41:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.41:1 |
| White text | 1.14:1 |
Values
| HEX | #C4FAFB |
| RGB | rgb(196, 250, 251) |
| HSL | hsl(181, 87%, 88%) |
| OKLCH | oklch(94.9% 0.055 197.7) |
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 #C4FAFB | 1.14:1 | Fails | Lc -7.6 | Not readable |
| Black text on #C4FAFB | 18.41:1 | AAA | Lc 97.1 | Preferred for body text |
| #C4FAFB text on white | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #C4FAFB text on black | 18.41:1 | AAA | Lc -98.0 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100 (this color)
#C4FAFB
oklch(94.9% 0.055 197.7)
-
Step 200
200
#BCE2E2
oklch(88.6% 0.04 196.5)
-
Step 300
300
#89CFD1
oklch(80.9% 0.07 198.1)
-
Step 400
400
#29B6B9
oklch(70.8% 0.112 197.1)
-
Step 500
500
#009DA0
oklch(63.1% 0.107 197.2)
-
Step 600
600
#008487
oklch(55.6% 0.095 197.6)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#005B5D
oklch(42.7% 0.073 197.4)
-
Step 900
900
#004C4E
oklch(37.8% 0.064 197.8)
-
Step 950
950
#002D2E
oklch(27% 0.046 197.1)
#C4FAFB 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) | #F3F5FB | 0.057 |
| Deuteranopia (no green cones) | #E8EDFC | 0.053 |
| Tritanopia (no blue cones) | #B2FEFA | 0.021 |
| Achromatopsia (no color) | #F0F0F0 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4FAFB
#C4FAFB
oklch(94.9% 0.055 197.7)
- #FFE8E8
#FFE8E8
oklch(94.9% 0.025 17.6)
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 #C4FAFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.011
- Pale Sky Blue #BDF6FE ΔE 0.015
- Light Light Blue #CAFFFB ΔE 0.016
- Eggshell Blue #C4FFF7 ΔE 0.016
- Pale Blue #D0FEFE ΔE 0.018
- Pale Cyan #B7FFFA ΔE 0.019
- Really Light Blue #D4FFFF ΔE 0.024
- Very Light Blue #D5FFFF ΔE 0.025
Use #C4FAFB 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.