#CDD5EC
Closest named color: Cadet Gray (#CED4DA). oklch(87.4% 0.033 270.4), rgb(205, 213, 236).
Aa
Black text reads best on this color (14.32:1).
About this color
#CDD5EC is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.033 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.024 away. Black text reads best on it, at 14.32:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.32:1 |
| White text | 1.46:1 |
Values
| HEX | #CDD5EC |
| RGB | rgb(205, 213, 236) |
| HSL | hsl(225, 45%, 86%) |
| OKLCH | oklch(87.4% 0.033 270.4) |
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 #CDD5EC | 1.46:1 | Fails | Lc -25.1 | Dividers and decoration only |
| Black text on #CDD5EC | 14.32:1 | AAA | Lc 81.6 | Fine for body text |
| #CDD5EC text on white | 1.46:1 | Fails | Lc 22.1 | Dividers and decoration only |
| #CDD5EC text on black | 14.32:1 | AAA | Lc -81.2 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF2
oklch(93.7% 0.011 269.5)
-
Step 200
200 (this color)
#CDD5EC
oklch(87.4% 0.033 270.4)
-
Step 300
300
#B6C0DD
oklch(80.9% 0.042 270.4)
-
Step 400
400
#909FCC
oklch(70.7% 0.068 270.3)
-
Step 500
500
#7587BE
oklch(63.1% 0.086 269.9)
-
Step 600
600
#5E70AB
oklch(55.6% 0.095 270.2)
-
Step 700
700
#4E5D92
oklch(49% 0.087 270.9)
-
Step 800
800
#404C77
oklch(42.6% 0.073 271.2)
-
Step 900
900
#364060
oklch(37.7% 0.057 270.3)
-
Step 950
950
#202638
oklch(27.1% 0.035 269.8)
#CDD5EC 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) | #CFD7ED | 0.006 |
| Deuteranopia (no green cones) | #CCD4EB | 0.003 |
| Tritanopia (no blue cones) | #C6D9DC | 0.030 |
| Achromatopsia (no color) | #D5D5D5 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDD5EC
#CDD5EC
oklch(87.4% 0.033 270.4)
- #DED5BE
#DED5BE
oklch(87.4% 0.032 89.2)
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 #CDD5EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.024
- Light Gray #D3D3D3 ΔE 0.034
- Gainsboro #DCDCDC ΔE 0.039
- Light Blue #ADD8E6 ΔE 0.042
- Light Blue Grey #B7C9E2 ΔE 0.045
- Powder Blue #B0E0E6 ΔE 0.047
- Pale Silver #D8E2DC ΔE 0.049
- Platinum #E0E1DD ΔE 0.051
Use #CDD5EC 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.