#CBDEF9
Closest named color: Gainsboro (#DCDCDC). oklch(89.5% 0.042 257.1), rgb(203, 222, 249).
Aa
Black text reads best on this color (15.35:1).
About this color
#CBDEF9 is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.042 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Gainsboro (#DCDCDC), ΔE 0.042 away. Black text reads best on it, at 15.35:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Gainsboro (#DCDCDC) |
| Black text | 15.35:1 |
| White text | 1.36:1 |
Values
| HEX | #CBDEF9 |
| RGB | rgb(203, 222, 249) |
| HSL | hsl(215, 79%, 89%) |
| OKLCH | oklch(89.5% 0.042 257.1) |
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 #CBDEF9 | 1.36:1 | Fails | Lc -20.6 | Dividers and decoration only |
| Black text on #CBDEF9 | 15.35:1 | AAA | Lc 85.7 | Fine for body text |
| #CBDEF9 text on white | 1.36:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #CBDEF9 text on black | 15.35:1 | AAA | Lc -85.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF5
oklch(93.5% 0.017 259.4)
-
Step 200
200 (this color)
#CBDEF9
oklch(89.5% 0.042 257.1)
-
Step 300
300
#ABC2E4
oklch(80.8% 0.054 258)
-
Step 400
400
#7EA3D7
oklch(70.8% 0.087 256.9)
-
Step 500
500
#5C8BCC
oklch(63.1% 0.111 256.7)
-
Step 600
600
#4274B9
oklch(55.7% 0.121 256.8)
-
Step 700
700
#3461A0
oklch(49.2% 0.113 257.2)
-
Step 800
800
#2B4F81
oklch(42.6% 0.093 257)
-
Step 900
900
#274268
oklch(37.7% 0.073 257.1)
-
Step 950
950
#17273D
oklch(27% 0.047 256.6)
#CBDEF9 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) | #D5DFFA | 0.013 |
| Deuteranopia (no green cones) | #D0DAF8 | 0.011 |
| Tritanopia (no blue cones) | #C0E4E7 | 0.037 |
| Achromatopsia (no color) | #DCDCDC | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CBDEF9
#CBDEF9
oklch(89.5% 0.042 257.1)
- #EDD9BE
#EDD9BE
oklch(89.5% 0.042 75.4)
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 #CBDEF9, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gainsboro #DCDCDC ΔE 0.042
- Cadet Gray #CED4DA ΔE 0.042
- Lavender #E6E6FA ΔE 0.043
- Powder Blue #B0E0E6 ΔE 0.045
- Pale Silver #D8E2DC ΔE 0.047
- Platinum #E0E1DD ΔE 0.049
- Light Blue #ADD8E6 ΔE 0.049
- Light Gray #D3D3D3 ΔE 0.051
Use #CBDEF9 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.