#C4ECFC
Closest named color: Diamond (#B9F2FF). oklch(92% 0.047 224.1), rgb(196, 236, 252).
Aa
Black text reads best on this color (16.75:1).
About this color
#C4ECFC is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.047 and its hue 224°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.018 away. Black text reads best on it, at 16.75:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.75:1 |
| White text | 1.25:1 |
Values
| HEX | #C4ECFC |
| RGB | rgb(196, 236, 252) |
| HSL | hsl(197, 90%, 88%) |
| OKLCH | oklch(92% 0.047 224.1) |
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 #C4ECFC | 1.25:1 | Fails | Lc -14.5 | Not readable |
| Black text on #C4ECFC | 16.75:1 | AAA | Lc 91.0 | Preferred for body text |
| #C4ECFC text on white | 1.25:1 | Fails | Lc 12.6 | Not readable |
| #C4ECFC text on black | 16.75:1 | AAA | Lc -91.4 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100 (this color)
#C4ECFC
oklch(92% 0.047 224.1)
-
Step 200
200
#C3DEEA
oklch(88.4% 0.033 226.4)
-
Step 300
300
#96CADE
oklch(81% 0.061 223.7)
-
Step 400
400
#55AECD
oklch(70.8% 0.096 223.5)
-
Step 500
500
#0098BE
oklch(63.1% 0.118 223.7)
-
Step 600
600
#0080A0
oklch(55.7% 0.104 223.4)
-
Step 700
700
#006B87
oklch(49% 0.092 224)
-
Step 800
800
#00586F
oklch(42.7% 0.08 223.4)
-
Step 900
900
#00495D
oklch(37.7% 0.071 223.8)
-
Step 950
950
#002B39
oklch(26.9% 0.051 225.5)
#C4ECFC 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) | #E3EAFD | 0.038 |
| Deuteranopia (no green cones) | #DAE3FC | 0.034 |
| Tritanopia (no blue cones) | #B4F1F1 | 0.030 |
| Achromatopsia (no color) | #E6E6E6 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4ECFC
#C4ECFC
oklch(92% 0.047 224.1)
- #FFDCCD
#FFDCCD
oklch(92% 0.044 44.6)
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 #C4ECFC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.018
- Pale Sky Blue #BDF6FE ΔE 0.026
- Pale Turquoise #AFEEEE ΔE 0.034
- Lavender #E6E6FA ΔE 0.043
- Duck Egg Blue #C3FBF4 ΔE 0.045
- Pale Silver #D8E2DC ΔE 0.046
- Powder Blue #B0E0E6 ΔE 0.047
- Robin's Egg Blue #98EFF9 ΔE 0.047
Use #C4ECFC 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.