#C4FCF3
Closest named color: Duck Egg Blue (#C3FBF4). oklch(95% 0.058 184.2), rgb(196, 252, 243).
Aa
Black text reads best on this color (18.56:1).
About this color
#C4FCF3 is a very light, muted teal or cyan. In OKLCH its lightness is 95%, its chroma 0.058 and its hue 184°. Its hue sits on the cool side of the wheel. The nearest named color is Duck Egg Blue (#C3FBF4), ΔE 0.004 away. Black text reads best on it, at 18.56:1.
| Hue family | Teals and cyans |
| Lightness | very light (95%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Duck Egg Blue (#C3FBF4) |
| Black text | 18.56:1 |
| White text | 1.13:1 |
Values
| HEX | #C4FCF3 |
| RGB | rgb(196, 252, 243) |
| HSL | hsl(170, 90%, 88%) |
| OKLCH | oklch(95% 0.058 184.2) |
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 #C4FCF3 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| Black text on #C4FCF3 | 18.56:1 | AAA | Lc 97.7 | Preferred for body text |
| #C4FCF3 text on white | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #C4FCF3 text on black | 18.56:1 | AAA | Lc -98.6 | 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
#EFF8F6
oklch(97.2% 0.01 181.4)
-
Step 100
100 (this color)
#C4FCF3
oklch(95% 0.058 184.2)
-
Step 200
200
#BCE3DC
oklch(88.6% 0.042 183.3)
-
Step 300
300
#88D1C6
oklch(81% 0.075 183.9)
-
Step 400
400
#23B8A9
oklch(70.6% 0.119 184.3)
-
Step 500
500
#009F91
oklch(63.1% 0.112 184)
-
Step 600
600
#00867A
oklch(55.7% 0.099 183.9)
-
Step 700
700
#007066
oklch(49% 0.087 184.2)
-
Step 800
800
#005C54
oklch(42.7% 0.075 184.7)
-
Step 900
900
#004D46
oklch(37.8% 0.067 184.5)
-
Step 950
950
#002E29
oklch(27.1% 0.048 183.6)
#C4FCF3 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) | #F6F6F3 | 0.061 |
| Deuteranopia (no green cones) | #ECEEF4 | 0.058 |
| Tritanopia (no blue cones) | #B4FEF9 | 0.017 |
| Achromatopsia (no color) | #F1F1F1 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4FCF3
#C4FCF3
oklch(95% 0.058 184.2)
- #FFE8EC
#FFE8EC
oklch(95.1% 0.026 5.7)
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 #C4FCF3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Duck Egg Blue #C3FBF4 ΔE 0.004
- Eggshell Blue #C4FFF7 ΔE 0.008
- Light Light Blue #CAFFFB ΔE 0.014
- Pale Cyan #B7FFFA ΔE 0.015
- Pale Aqua #B8FFEB ΔE 0.021
- Pale Blue #D0FEFE ΔE 0.021
- Ice #D6FFFA ΔE 0.025
- Really Light Blue #D4FFFF ΔE 0.026
Use #C4FCF3 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.