#CDD5EE
Closest named color: Cadet Gray (#CED4DA). oklch(87.5% 0.036 271.5), rgb(205, 213, 238).
Aa
Black text reads best on this color (14.34:1).
About this color
#CDD5EE is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.036 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.027 away. Black text reads best on it, at 14.34:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.34:1 |
| White text | 1.46:1 |
Values
| HEX | #CDD5EE |
| RGB | rgb(205, 213, 238) |
| HSL | hsl(225, 49%, 87%) |
| OKLCH | oklch(87.5% 0.036 271.5) |
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 #CDD5EE | 1.46:1 | Fails | Lc -25.0 | Dividers and decoration only |
| Black text on #CDD5EE | 14.34:1 | AAA | Lc 81.7 | Fine for body text |
| #CDD5EE text on white | 1.46:1 | Fails | Lc 22.0 | Dividers and decoration only |
| #CDD5EE text on black | 14.34:1 | AAA | Lc -81.3 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200 (this color)
#CDD5EE
oklch(87.5% 0.036 271.5)
-
Step 300
300
#B6C0DF
oklch(81% 0.045 271.2)
-
Step 400
400
#909ECF
oklch(70.6% 0.074 272.1)
-
Step 500
500
#7586C2
oklch(63.1% 0.093 271.4)
-
Step 600
600
#5E6FAF
oklch(55.6% 0.102 271.5)
-
Step 700
700
#4E5D96
oklch(49.2% 0.093 271.5)
-
Step 800
800
#404C7A
oklch(42.8% 0.078 271.7)
-
Step 900
900
#363F62
oklch(37.6% 0.061 272.2)
-
Step 950
950
#202539
oklch(26.9% 0.038 272.9)
#CDD5EE 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) | #CED7EF | 0.005 |
| Deuteranopia (no green cones) | #CCD4ED | 0.003 |
| Tritanopia (no blue cones) | #C6DADD | 0.033 |
| Achromatopsia (no color) | #D5D5D5 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDD5EE
#CDD5EE
oklch(87.5% 0.036 271.5)
- #DED5BC
#DED5BC
oklch(87.4% 0.035 90.5)
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 #CDD5EE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.027
- Light Gray #D3D3D3 ΔE 0.036
- Gainsboro #DCDCDC ΔE 0.041
- Light Blue #ADD8E6 ΔE 0.043
- Light Blue Grey #B7C9E2 ΔE 0.046
- Powder Blue #B0E0E6 ΔE 0.048
- Pale Lilac #E4CBFF ΔE 0.051
- Pale Silver #D8E2DC ΔE 0.051
Use #CDD5EE 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.