#CDE9FF
Closest named color: Diamond (#B9F2FF). oklch(92.1% 0.042 241.7), rgb(205, 233, 255).
Aa
Black text reads best on this color (16.69:1).
About this color
#CDE9FF is a very light, muted blue. In OKLCH its lightness is 92%, its chroma 0.042 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Diamond (#B9F2FF), ΔE 0.031 away. Black text reads best on it, at 16.69:1.
| Hue family | Blues |
| Lightness | very light (92%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Diamond (#B9F2FF) |
| Black text | 16.69:1 |
| White text | 1.25:1 |
Values
| HEX | #CDE9FF |
| RGB | rgb(205, 233, 255) |
| HSL | hsl(206, 100%, 90%) |
| OKLCH | oklch(92.1% 0.042 241.7) |
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 #CDE9FF | 1.25:1 | Fails | Lc -14.8 | Not readable |
| Black text on #CDE9FF | 16.69:1 | AAA | Lc 90.8 | Preferred for body text |
| #CDE9FF text on white | 1.25:1 | Fails | Lc 12.8 | Not readable |
| #CDE9FF text on black | 16.69:1 | AAA | Lc -91.1 | Preferred 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 100.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100 (this color)
#CDE9FF
oklch(92.1% 0.042 241.7)
-
Step 200
200
#C8DCEC
oklch(88.4% 0.031 242)
-
Step 300
300
#A2C6E1
oklch(80.9% 0.054 240.8)
-
Step 400
400
#6EA8D2
oklch(70.8% 0.086 241)
-
Step 500
500
#4491C6
oklch(63.1% 0.11 241.6)
-
Step 600
600
#1D7AB3
oklch(55.5% 0.121 241.9)
-
Step 700
700
#0B679A
oklch(49.2% 0.112 241.4)
-
Step 800
800
#10547D
oklch(42.7% 0.093 241.6)
-
Step 900
900
#174664
oklch(37.8% 0.072 240.7)
-
Step 950
950
#0F293B
oklch(27% 0.046 241.6)
#CDE9FF 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) | #E0E8FF | 0.024 |
| Deuteranopia (no green cones) | #DAE3FF | 0.021 |
| Tritanopia (no blue cones) | #C0EEF0 | 0.033 |
| Achromatopsia (no color) | #E5E5E5 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CDE9FF
#CDE9FF
oklch(92.1% 0.042 241.7)
- #FADFC9
#FADFC9
oklch(92% 0.042 61.4)
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 #CDE9FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Diamond #B9F2FF ΔE 0.031
- Lavender #E6E6FA ΔE 0.031
- Pale Sky Blue #BDF6FE ΔE 0.038
- Pale Silver #D8E2DC ΔE 0.046
- Platinum #E0E1DD ΔE 0.047
- Pale Turquoise #AFEEEE ΔE 0.047
- Gainsboro #DCDCDC ΔE 0.050
- Anti-Flash White #EDF2F4 ΔE 0.052
Use #CDE9FF 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.