#CBDDF9
Closest named color: Cadet Gray (#CED4DA). oklch(89.3% 0.043 259.2), rgb(203, 221, 249).
Aa
Black text reads best on this color (15.24:1).
About this color
#CBDDF9 is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.043 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.042 away. Black text reads best on it, at 15.24:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 15.24:1 |
| White text | 1.37:1 |
Values
| HEX | #CBDDF9 |
| RGB | rgb(203, 221, 249) |
| HSL | hsl(217, 79%, 89%) |
| OKLCH | oklch(89.3% 0.043 259.2) |
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 #CBDDF9 | 1.37:1 | Fails | Lc -21.0 | Dividers and decoration only |
| Black text on #CBDDF9 | 15.24:1 | AAA | Lc 85.3 | Fine for body text |
| #CBDDF9 text on white | 1.37:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #CBDDF9 text on black | 15.24:1 | AAA | Lc -85.1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200 (this color)
#CBDDF9
oklch(89.3% 0.043 259.2)
-
Step 300
300
#ACC2E5
oklch(80.9% 0.055 259.6)
-
Step 400
400
#7FA2D8
oklch(70.7% 0.089 258.9)
-
Step 500
500
#5F8ACE
oklch(63.2% 0.114 259.3)
-
Step 600
600
#4573BB
oklch(55.7% 0.123 259)
-
Step 700
700
#3660A1
oklch(49.1% 0.115 258.9)
-
Step 800
800
#2D4E82
oklch(42.6% 0.095 259.1)
-
Step 900
900
#294269
oklch(37.9% 0.074 259)
-
Step 950
950
#18273D
oklch(27.1% 0.046 257.8)
#CBDDF9 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) | #D4DEFA | 0.012 |
| Deuteranopia (no green cones) | #CFDAF8 | 0.009 |
| Tritanopia (no blue cones) | #C0E3E6 | 0.038 |
| Achromatopsia (no color) | #DCDCDC | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBDDF9
#CBDDF9
oklch(89.3% 0.043 259.2)
- #EBD9BC
#EBD9BC
oklch(89.2% 0.043 79.8)
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 #CBDDF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.042
- Gainsboro #DCDCDC ΔE 0.043
- Lavender #E6E6FA ΔE 0.044
- Powder Blue #B0E0E6 ΔE 0.046
- Light Blue #ADD8E6 ΔE 0.048
- Pale Silver #D8E2DC ΔE 0.048
- Platinum #E0E1DD ΔE 0.050
- Light Gray #D3D3D3 ΔE 0.050
Use #CBDDF9 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.