#C9DFFB
Closest named color: Lavender (#E6E6FA). oklch(89.6% 0.045 254.5), rgb(201, 223, 251).
Aa
Black text reads best on this color (15.43:1).
About this color
#C9DFFB is a light, muted blue. In OKLCH its lightness is 90%, its chroma 0.045 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender (#E6E6FA), ΔE 0.044 away. Black text reads best on it, at 15.43:1.
| Hue family | Blues |
| Lightness | light (90%) |
| Chroma | muted (0.045) |
| Temperature | cool |
| Nearest name | Lavender (#E6E6FA) |
| Black text | 15.43:1 |
| White text | 1.36:1 |
Values
| HEX | #C9DFFB |
| RGB | rgb(201, 223, 251) |
| HSL | hsl(214, 86%, 89%) |
| OKLCH | oklch(89.6% 0.045 254.5) |
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 #C9DFFB | 1.36:1 | Fails | Lc -20.2 | Dividers and decoration only |
| Black text on #C9DFFB | 15.43:1 | AAA | Lc 86.0 | Fine for body text |
| #C9DFFB text on white | 1.36:1 | Fails | Lc 17.7 | Dividers and decoration only |
| #C9DFFB text on black | 15.43:1 | AAA | Lc -85.9 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200 (this color)
#C9DFFB
oklch(89.6% 0.045 254.5)
-
Step 300
300
#A8C3E6
oklch(80.9% 0.058 255)
-
Step 400
400
#78A3DA
oklch(70.6% 0.094 254.9)
-
Step 500
500
#548CD0
oklch(63.2% 0.119 254.2)
-
Step 600
600
#3874BD
oklch(55.5% 0.13 254.8)
-
Step 700
700
#2A61A3
oklch(49% 0.121 254.8)
-
Step 800
800
#245084
oklch(42.7% 0.099 254.3)
-
Step 900
900
#22436A
oklch(37.8% 0.078 253.9)
-
Step 950
950
#15273E
oklch(27% 0.049 255.2)
#C9DFFB 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) | #D5E0FC | 0.016 |
| Deuteranopia (no green cones) | #D0DBFA | 0.013 |
| Tritanopia (no blue cones) | #BCE5E8 | 0.039 |
| Achromatopsia (no color) | #DDDDDD | 0.045 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9DFFB
#C9DFFB
oklch(89.6% 0.045 254.5)
- #EFD9BC
#EFD9BC
oklch(89.6% 0.046 74.7)
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 #C9DFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender #E6E6FA ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.045
- Gainsboro #DCDCDC ΔE 0.045
- Cadet Gray #CED4DA ΔE 0.045
- Pale Silver #D8E2DC ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.049
- Diamond #B9F2FF ΔE 0.050
- Platinum #E0E1DD ΔE 0.051
Use #C9DFFB 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.