#C4ECEF
Closest named color: Diamond (#B9F2FF). oklch(91.6% 0.042 202.1), rgb(196, 236, 239).
Aa
Black text reads best on this color (16.59:1).
About this color
#C4ECEF is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.042 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.024 away. Black text reads best on it, at 16.59:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.59:1 |
| White text | 1.26:1 |
Values
| HEX | #C4ECEF |
| RGB | rgb(196, 236, 239) |
| HSL | hsl(184, 57%, 85%) |
| OKLCH | oklch(91.6% 0.042 202.1) |
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 #C4ECEF | 1.26:1 | Fails | Lc -15.2 | Dividers and decoration only |
| Black text on #C4ECEF | 16.59:1 | AAA | Lc 90.4 | Preferred for body text |
| #C4ECEF text on white | 1.26:1 | Fails | Lc 13.2 | Not readable |
| #C4ECEF text on black | 16.59:1 | AAA | Lc -90.7 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100 (this color)
#C4ECEF
oklch(91.6% 0.042 202.1)
-
Step 200
200
#C3DFE1
oklch(88.4% 0.03 201.9)
-
Step 300
300
#98CBCF
oklch(80.8% 0.053 202.2)
-
Step 400
400
#58B1B7
oklch(70.8% 0.086 201.3)
-
Step 500
500
#009CA5
oklch(63.1% 0.107 202)
-
Step 600
600
#00838B
oklch(55.5% 0.095 202.3)
-
Step 700
700
#006E75
oklch(49% 0.083 202.5)
-
Step 800
800
#005A60
oklch(42.6% 0.073 202.7)
-
Step 900
900
#004B50
oklch(37.6% 0.064 202.5)
-
Step 950
950
#012D30
oklch(27.1% 0.045 201.9)
#C4ECEF 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) | #E6E8EF | 0.043 |
| Deuteranopia (no green cones) | #DEE2EF | 0.039 |
| Tritanopia (no blue cones) | #B7EFED | 0.017 |
| Achromatopsia (no color) | #E4E4E4 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4ECEF
#C4ECEF
oklch(91.6% 0.042 202.1)
- #FED9D7
#FED9D7
oklch(91.6% 0.041 21.6)
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 #C4ECEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.024
- Pale Turquoise #AFEEEE ΔE 0.024
- Pale Sky Blue #BDF6FE ΔE 0.027
- Pale Silver #D8E2DC ΔE 0.035
- Duck Egg Blue #C3FBF4 ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.042
- Platinum #E0E1DD ΔE 0.042
- Robin's Egg Blue #98EFF9 ΔE 0.046
Use #C4ECEF 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.