#C9EDEF
Closest named color: Diamond (#B9F2FF). oklch(92.1% 0.038 200.7), rgb(201, 237, 239).
Aa
Black text reads best on this color (16.84:1).
About this color
#C9EDEF is a very light, muted teal or cyan. In OKLCH its lightness is 92%, its chroma 0.038 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.026 away. Black text reads best on it, at 16.84:1.
| Hue family | Teals and cyans |
| Lightness | very light (92%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.84:1 |
| White text | 1.24:1 |
Values
| HEX | #C9EDEF |
| RGB | rgb(201, 237, 239) |
| HSL | hsl(183, 54%, 86%) |
| OKLCH | oklch(92.1% 0.038 200.7) |
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 #C9EDEF | 1.24:1 | Fails | Lc -14.2 | Not readable |
| Black text on #C9EDEF | 16.84:1 | AAA | Lc 91.4 | Preferred for body text |
| #C9EDEF text on white | 1.24:1 | Fails | Lc 12.2 | Not readable |
| #C9EDEF text on black | 16.84:1 | AAA | Lc -91.8 | 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)
#C9EDEF
oklch(92.1% 0.038 200.7)
-
Step 200
200
#C6DFE0
oklch(88.6% 0.027 199.6)
-
Step 300
300
#9DCBCD
oklch(81% 0.048 199.6)
-
Step 400
400
#61AFB4
oklch(70.6% 0.077 201)
-
Step 500
500
#269BA2
oklch(63.1% 0.098 201.1)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950
#072C2E
oklch(26.9% 0.04 200.3)
#C9EDEF 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) | #E8E9EF | 0.039 |
| Deuteranopia (no green cones) | #E0E4EF | 0.035 |
| Tritanopia (no blue cones) | #BEF0ED | 0.015 |
| Achromatopsia (no color) | #E6E6E6 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9EDEF
#C9EDEF
oklch(92.1% 0.038 200.7)
- #FDDCDA
#FDDCDA
oklch(92.1% 0.037 22)
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 #C9EDEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.026
- Pale Sky Blue #BDF6FE ΔE 0.027
- Pale Turquoise #AFEEEE ΔE 0.030
- Pale Silver #D8E2DC ΔE 0.034
- Duck Egg Blue #C3FBF4 ΔE 0.035
- Platinum #E0E1DD ΔE 0.039
- Eggshell Blue #C4FFF7 ΔE 0.045
- Pale Blue #D0FEFE ΔE 0.045
Use #C9EDEF 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.