#C4FBF9
Closest named color: Duck Egg Blue (#C3FBF4). oklch(95% 0.056 193.5), rgb(196, 251, 249).
Aa
Black text reads best on this color (18.51:1).
About this color
#C4FBF9 is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.056 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.007 away. Black text reads best on it, at 18.51:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.51:1 |
| White text | 1.13:1 |
Values
| HEX | #C4FBF9 |
| RGB | rgb(196, 251, 249) |
| HSL | hsl(178, 87%, 88%) |
| OKLCH | oklch(95% 0.056 193.5) |
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 #C4FBF9 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| Black text on #C4FBF9 | 18.51:1 | AAA | Lc 97.5 | Preferred for body text |
| #C4FBF9 text on white | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #C4FBF9 text on black | 18.51:1 | AAA | Lc -98.4 | 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
#EFF8F7
oklch(97.2% 0.01 189.1)
-
Step 100
100 (this color)
#C4FBF9
oklch(95% 0.056 193.5)
-
Step 200
200
#BCE2E0
oklch(88.5% 0.04 192.5)
-
Step 300
300
#88D0CE
oklch(81% 0.072 193.6)
-
Step 400
400
#25B7B5
oklch(70.8% 0.114 193.4)
-
Step 500
500
#009D9C
oklch(63% 0.108 194)
-
Step 600
600
#008483
oklch(55.5% 0.095 193.8)
-
Step 700
700
#006F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#005B5A
oklch(42.6% 0.073 193.5)
-
Step 900
900
#004C4B
oklch(37.7% 0.064 193.2)
-
Step 950
950
#002D2D
oklch(26.9% 0.046 194.8)
#C4FBF9 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) | #F4F5F9 | 0.059 |
| Deuteranopia (no green cones) | #E9EDFA | 0.055 |
| Tritanopia (no blue cones) | #B3FEFA | 0.019 |
| Achromatopsia (no color) | #F1F1F1 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4FBF9
#C4FBF9
oklch(95% 0.056 193.5)
- #FFE8E9
#FFE8E9
oklch(95% 0.025 14.6)
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 #C4FBF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.007
- Eggshell Blue #C4FFF7 ΔE 0.012
- Light Light Blue #CAFFFB ΔE 0.013
- Pale Cyan #B7FFFA ΔE 0.016
- Pale Blue #D0FEFE ΔE 0.018
- Pale Sky Blue #BDF6FE ΔE 0.019
- Really Light Blue #D4FFFF ΔE 0.023
- Ice #D6FFFA ΔE 0.024
Use #C4FBF9 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.