#CDDFFB
Closest named color: Lavender (#E6E6FA). oklch(89.9% 0.043 259.2), rgb(205, 223, 251).
Aa
Black text reads best on this color (15.54:1).
About this color
#CDDFFB is a light, muted blue. In OKLCH its lightness is 90%, its chroma 0.043 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender (#E6E6FA), ΔE 0.039 away. Black text reads best on it, at 15.54:1.
| Hue family | Blues |
| Lightness | light (90%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Lavender (#E6E6FA) |
| Black text | 15.54:1 |
| White text | 1.35:1 |
Values
| HEX | #CDDFFB |
| RGB | rgb(205, 223, 251) |
| HSL | hsl(217, 85%, 89%) |
| OKLCH | oklch(89.9% 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 #CDDFFB | 1.35:1 | Fails | Lc -19.7 | Dividers and decoration only |
| Black text on #CDDFFB | 15.54:1 | AAA | Lc 86.4 | Fine for body text |
| #CDDFFB text on white | 1.35:1 | Fails | Lc 17.2 | Dividers and decoration only |
| #CDDFFB text on black | 15.54:1 | AAA | Lc -86.4 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200 (this color)
#CDDFFB
oklch(89.9% 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
#3760A1
oklch(49.2% 0.114 259.3)
-
Step 800
800
#2E4E82
oklch(42.6% 0.095 259.7)
-
Step 900
900
#294269
oklch(37.9% 0.074 259)
-
Step 950
950
#18273D
oklch(27.1% 0.046 257.8)
#CDDFFB 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) | #D6E0FC | 0.012 |
| Deuteranopia (no green cones) | #D1DCFA | 0.009 |
| Tritanopia (no blue cones) | #C2E5E8 | 0.038 |
| Achromatopsia (no color) | #DEDEDE | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDDFFB
#CDDFFB
oklch(89.9% 0.043 259.2)
- #EDDBBE
#EDDBBE
oklch(89.9% 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 #CDDFFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender #E6E6FA ΔE 0.039
- Gainsboro #DCDCDC ΔE 0.043
- Cadet Gray #CED4DA ΔE 0.046
- Pale Silver #D8E2DC ΔE 0.047
- Platinum #E0E1DD ΔE 0.048
- Powder Blue #B0E0E6 ΔE 0.049
- Diamond #B9F2FF ΔE 0.051
- Light Blue #ADD8E6 ΔE 0.053
Use #CDDFFB 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.