#C9EAEE
Closest named color: Diamond (#B9F2FF). oklch(91.5% 0.035 205.5), rgb(201, 234, 238).
Aa
Black text reads best on this color (16.48:1).
About this color
#C9EAEE is a very light, muted teal or cyan. In OKLCH its lightness is 91%, its chroma 0.035 and its hue 205°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.029 away. Black text reads best on it, at 16.48:1.
| Hue family | Teals and cyans |
| Lightness | very light (91%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.48:1 |
| White text | 1.27:1 |
Values
| HEX | #C9EAEE |
| RGB | rgb(201, 234, 238) |
| HSL | hsl(186, 52%, 86%) |
| OKLCH | oklch(91.5% 0.035 205.5) |
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 #C9EAEE | 1.27:1 | Fails | Lc -15.7 | Dividers and decoration only |
| Black text on #C9EAEE | 16.48:1 | AAA | Lc 90.0 | Preferred for body text |
| #C9EAEE text on white | 1.27:1 | Fails | Lc 13.6 | Not readable |
| #C9EAEE text on black | 16.48:1 | AAA | Lc -90.3 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100 (this color)
#C9EAEE
oklch(91.5% 0.035 205.5)
-
Step 200
200
#C7DEE1
oklch(88.4% 0.025 206.2)
-
Step 300
300
#9FC9CF
oklch(80.8% 0.045 207.1)
-
Step 400
400
#67AEB6
oklch(70.7% 0.072 204.9)
-
Step 500
500
#3599A4
oklch(63% 0.091 205.5)
-
Step 600
600
#00838E
oklch(55.7% 0.095 205.2)
-
Step 700
700
#006E78
oklch(49.1% 0.084 205.8)
-
Step 800
800
#005A62
oklch(42.7% 0.073 205.3)
-
Step 900
900
#0C4A51
oklch(37.6% 0.06 206.6)
-
Step 950
950
#0B2C2F
oklch(27.1% 0.038 203.6)
#C9EAEE 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) | #E5E7EE | 0.035 |
| Deuteranopia (no green cones) | #DEE2EE | 0.032 |
| Tritanopia (no blue cones) | #BEEDEB | 0.016 |
| Achromatopsia (no color) | #E4E4E4 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9EAEE
#C9EAEE
oklch(91.5% 0.035 205.5)
- #F9DAD7
#F9DAD7
oklch(91.3% 0.035 24.4)
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 #C9EAEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.029
- Pale Silver #D8E2DC ΔE 0.029
- Pale Turquoise #AFEEEE ΔE 0.030
- Pale Sky Blue #BDF6FE ΔE 0.033
- Platinum #E0E1DD ΔE 0.036
- Gainsboro #DCDCDC ΔE 0.040
- Powder Blue #B0E0E6 ΔE 0.042
- Duck Egg Blue #C3FBF4 ΔE 0.043
Use #C9EAEE 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.