#CDDCEF
Closest named color: Cadet Gray (#CED4DA). oklch(88.9% 0.031 254.3), rgb(205, 220, 239).
Aa
Black text reads best on this color (15.07:1).
About this color
#CDDCEF is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.031 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.030 away. Black text reads best on it, at 15.07:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 15.07:1 |
| White text | 1.39:1 |
Values
| HEX | #CDDCEF |
| RGB | rgb(205, 220, 239) |
| HSL | hsl(214, 52%, 87%) |
| OKLCH | oklch(88.9% 0.031 254.3) |
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 #CDDCEF | 1.39:1 | Fails | Lc -21.8 | Dividers and decoration only |
| Black text on #CDDCEF | 15.07:1 | AAA | Lc 84.6 | Fine for body text |
| #CDDCEF text on white | 1.39:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #CDDCEF text on black | 15.07:1 | AAA | Lc -84.4 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF2
oklch(93.6% 0.012 259.8)
-
Step 200
200 (this color)
#CDDCEF
oklch(88.9% 0.031 254.3)
-
Step 300
300
#B0C3DA
oklch(81% 0.039 253.3)
-
Step 400
400
#86A3C8
oklch(70.7% 0.063 254.7)
-
Step 500
500
#678CBA
oklch(63.1% 0.081 254.3)
-
Step 600
600
#4E75A6
oklch(55.5% 0.089 254.7)
-
Step 700
700
#3F638E
oklch(49.2% 0.081 253.7)
-
Step 800
800
#345173
oklch(42.8% 0.067 253.2)
-
Step 900
900
#2E435D
oklch(37.7% 0.052 254.2)
-
Step 950
950
#1B2737
oklch(26.9% 0.034 255.8)
#CDDCEF 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) | #D6DCF0 | 0.012 |
| Deuteranopia (no green cones) | #D2D9EF | 0.010 |
| Tritanopia (no blue cones) | #C5E0E2 | 0.026 |
| Achromatopsia (no color) | #DADADA | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDDCEF
#CDDCEF
oklch(88.9% 0.031 254.3)
- #E7D8C5
#E7D8C5
oklch(88.9% 0.03 73.9)
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 #CDDCEF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.030
- Gainsboro #DCDCDC ΔE 0.031
- Pale Silver #D8E2DC ΔE 0.037
- Light Gray #D3D3D3 ΔE 0.038
- Platinum #E0E1DD ΔE 0.040
- Powder Blue #B0E0E6 ΔE 0.040
- Light Blue #ADD8E6 ΔE 0.044
- Lavender #E6E6FA ΔE 0.045
Use #CDDCEF 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.