#C6DDFB
Closest named color: Powder Blue (#B0E0E6). oklch(89% 0.048 255.1), rgb(198, 221, 251).
Aa
Black text reads best on this color (15.13:1).
About this color
#C6DDFB is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.048 and its hue 255°. Its hue sits on the cool side of the wheel. The nearest named color is Powder Blue (#B0E0E6), ΔE 0.044 away. Black text reads best on it, at 15.13:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Powder Blue (#B0E0E6) |
| Black text | 15.13:1 |
| White text | 1.38:1 |
Values
| HEX | #C6DDFB |
| RGB | rgb(198, 221, 251) |
| HSL | hsl(214, 87%, 88%) |
| OKLCH | oklch(89% 0.048 255.1) |
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 #C6DDFB | 1.38:1 | Fails | Lc -21.5 | Dividers and decoration only |
| Black text on #C6DDFB | 15.13:1 | AAA | Lc 84.8 | Fine for body text |
| #C6DDFB text on white | 1.38:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #C6DDFB text on black | 15.13:1 | AAA | Lc -84.7 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200 (this color)
#C6DDFB
oklch(89% 0.048 255.1)
-
Step 300
300
#A6C3E9
oklch(80.9% 0.063 255.3)
-
Step 400
400
#76A3DE
oklch(70.7% 0.1 255.5)
-
Step 500
500
#518BD5
oklch(63.1% 0.128 255.3)
-
Step 600
600
#3474C2
oklch(55.7% 0.138 255)
-
Step 700
700
#2661A7
oklch(49.1% 0.128 254.8)
-
Step 800
800
#214F88
oklch(42.7% 0.107 255.4)
-
Step 900
900
#21426C
oklch(37.6% 0.082 255.4)
-
Step 950
950
#14273F
oklch(27% 0.052 255)
#C6DDFB 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) | #D3DEFD | 0.017 |
| Deuteranopia (no green cones) | #CDD8FA | 0.015 |
| Tritanopia (no blue cones) | #B8E3E7 | 0.041 |
| Achromatopsia (no color) | #DBDBDB | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C6DDFB
#C6DDFB
oklch(89% 0.048 255.1)
- #EED7B8
#EED7B8
oklch(89% 0.048 75.3)
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 #C6DDFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Powder Blue #B0E0E6 ΔE 0.044
- Cadet Gray #CED4DA ΔE 0.044
- Light Blue #ADD8E6 ΔE 0.045
- Gainsboro #DCDCDC ΔE 0.048
- Lavender #E6E6FA ΔE 0.050
- Pale Silver #D8E2DC ΔE 0.053
- Light Gray #D3D3D3 ΔE 0.054
- Diamond #B9F2FF ΔE 0.054
Use #C6DDFB 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.