#C9E4FA
Closest named color: Diamond (#B9F2FF). oklch(90.6% 0.042 242.7), rgb(201, 228, 250).
Aa
Black text reads best on this color (15.96:1).
About this color
#C9E4FA is a very light, muted blue. In OKLCH its lightness is 91%, its chroma 0.042 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.038 away. Black text reads best on it, at 15.96:1.
| Hue family | Blues |
| Lightness | very light (91%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 15.96:1 |
| White text | 1.31:1 |
Values
| HEX | #C9E4FA |
| RGB | rgb(201, 228, 250) |
| HSL | hsl(207, 83%, 88%) |
| OKLCH | oklch(90.6% 0.042 242.7) |
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 #C9E4FA | 1.31:1 | Fails | Lc -17.9 | Dividers and decoration only |
| Black text on #C9E4FA | 15.96:1 | AAA | Lc 88.0 | Fine for body text |
| #C9E4FA text on white | 1.31:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #C9E4FA text on black | 15.96:1 | AAA | Lc -88.1 | Fine 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 200.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF4
oklch(93.5% 0.016 245.1)
-
Step 200
200 (this color)
#C9E4FA
oklch(90.6% 0.042 242.7)
-
Step 300
300
#A3C5E1
oklch(80.8% 0.054 243.3)
-
Step 400
400
#70A7D2
oklch(70.7% 0.086 242.9)
-
Step 500
500
#4791C6
oklch(63.2% 0.109 242.4)
-
Step 600
600
#227AB3
oklch(55.7% 0.119 242.6)
-
Step 700
700
#13669A
oklch(49% 0.111 243.1)
-
Step 800
800
#14547D
oklch(42.8% 0.092 242.4)
-
Step 900
900
#194564
oklch(37.6% 0.072 242.8)
-
Step 950
950
#10293B
oklch(27.1% 0.046 242.4)
#C9E4FA 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) | #DBE3FB | 0.023 |
| Deuteranopia (no green cones) | #D5DEFA | 0.021 |
| Tritanopia (no blue cones) | #BCE9EB | 0.033 |
| Achromatopsia (no color) | #E0E0E0 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9E4FA
#C9E4FA
oklch(90.6% 0.042 242.7)
- #F5DBC4
#F5DBC4
oklch(90.7% 0.042 63.8)
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 #C9E4FA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.038
- Lavender #E6E6FA ΔE 0.038
- Pale Silver #D8E2DC ΔE 0.042
- Gainsboro #DCDCDC ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.043
- Platinum #E0E1DD ΔE 0.045
- Pale Turquoise #AFEEEE ΔE 0.046
- Pale Sky Blue #BDF6FE ΔE 0.046
Use #C9E4FA 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.