#C9CDEE
Closest named color: Light Blue Grey (#B7C9E2). oklch(85.6% 0.046 279.9), rgb(201, 205, 238).
Aa
Black text reads best on this color (13.45:1).
About this color
#C9CDEE is a light, muted blue. In OKLCH its lightness is 86%, its chroma 0.046 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Light Blue Grey (#B7C9E2), ΔE 0.031 away. Black text reads best on it, at 13.45:1.
| Hue family | Blues |
| Lightness | light (86%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Light Blue Grey (#B7C9E2) |
| Black text | 13.45:1 |
| White text | 1.56:1 |
Values
| HEX | #C9CDEE |
| RGB | rgb(201, 205, 238) |
| HSL | hsl(234, 52%, 86%) |
| OKLCH | oklch(85.6% 0.046 279.9) |
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 #C9CDEE | 1.56:1 | Fails | Lc -29.1 | Dividers and decoration only |
| Black text on #C9CDEE | 13.45:1 | AAA | Lc 78.1 | Fine for body text |
| #C9CDEE text on white | 1.56:1 | Fails | Lc 25.7 | Dividers and decoration only |
| #C9CDEE text on black | 13.45:1 | AAA | Lc -77.4 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200 (this color)
#C9CDEE
oklch(85.6% 0.046 279.9)
-
Step 300
300
#B8BDE7
oklch(80.9% 0.059 279.7)
-
Step 400
400
#959ADB
oklch(70.7% 0.095 280.3)
-
Step 500
500
#7C80D1
oklch(63.1% 0.121 280.2)
-
Step 600
600
#6568BE
oklch(55.6% 0.131 279.7)
-
Step 700
700
#5456A4
oklch(49% 0.123 279.8)
-
Step 800
800
#454785
oklch(42.8% 0.101 279.8)
-
Step 900
900
#3A3C6A
oklch(37.7% 0.078 280.1)
-
Step 950
950
#22233E
oklch(26.9% 0.05 280.9)
#C9CDEE 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) | #C5D0F0 | 0.008 |
| Deuteranopia (no green cones) | #C3CEED | 0.008 |
| Tritanopia (no blue cones) | #C1D3D8 | 0.041 |
| Achromatopsia (no color) | #CFCFCF | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C9CDEE
#C9CDEE
oklch(85.6% 0.046 279.9)
- #D6D1AF
#D6D1AF
oklch(85.6% 0.046 100.4)
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 #C9CDEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Blue Grey #B7C9E2 ΔE 0.031
- Light Periwinkle #C1C6FC ΔE 0.033
- Cadet Gray #CED4DA ΔE 0.039
- Thistle #D8BFD8 ΔE 0.042
- Light Lavender #DFC5FE ΔE 0.046
- Light Steel Blue #B0C4DE ΔE 0.046
- Pale Lilac #E4CBFF ΔE 0.047
- Light Gray #D3D3D3 ΔE 0.047
Use #C9CDEE 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.