#CDDBEE
Closest named color: Cadet Gray (#CED4DA). oklch(88.7% 0.03 256), rgb(205, 219, 238).
Aa
Black text reads best on this color (14.96:1).
About this color
#CDDBEE is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.030 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.028 away. Black text reads best on it, at 14.96:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.030) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.96:1 |
| White text | 1.40:1 |
Values
| HEX | #CDDBEE |
| RGB | rgb(205, 219, 238) |
| HSL | hsl(215, 49%, 87%) |
| OKLCH | oklch(88.7% 0.03 256) |
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 #CDDBEE | 1.40:1 | Fails | Lc -22.3 | Dividers and decoration only |
| Black text on #CDDBEE | 14.96:1 | AAA | Lc 84.2 | Fine for body text |
| #CDDBEE text on white | 1.40:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #CDDBEE text on black | 14.96:1 | AAA | Lc -83.9 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200 (this color)
#CDDBEE
oklch(88.7% 0.03 256)
-
Step 300
300
#B1C2DA
oklch(80.9% 0.039 257)
-
Step 400
400
#87A3C8
oklch(70.8% 0.063 255.5)
-
Step 500
500
#698BB9
oklch(62.9% 0.08 256.1)
-
Step 600
600
#5175A5
oklch(55.6% 0.086 255.9)
-
Step 700
700
#41628E
oklch(49.1% 0.081 255.9)
-
Step 800
800
#365073
oklch(42.7% 0.067 256.1)
-
Step 900
900
#2F435D
oklch(37.8% 0.052 255.3)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#CDDBEE 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) | #D5DBEF | 0.011 |
| Deuteranopia (no green cones) | #D1D8EE | 0.009 |
| Tritanopia (no blue cones) | #C5DFE1 | 0.026 |
| Achromatopsia (no color) | #DADADA | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDDBEE
#CDDBEE
oklch(88.7% 0.03 256)
- #E5D7C4
#E5D7C4
oklch(88.5% 0.03 75.7)
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 #CDDBEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.028
- Gainsboro #DCDCDC ΔE 0.031
- Light Gray #D3D3D3 ΔE 0.036
- Pale Silver #D8E2DC ΔE 0.038
- Powder Blue #B0E0E6 ΔE 0.040
- Platinum #E0E1DD ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.043
- Lavender #E6E6FA ΔE 0.047
Use #CDDBEE 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.