#C6DDEE
Closest named color: Cadet Gray (#CED4DA). oklch(88.6% 0.034 239.9), rgb(198, 221, 238).
Aa
Black text reads best on this color (14.97:1).
About this color
#C6DDEE is a light, muted blue. In OKLCH its lightness is 89%, its chroma 0.034 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.030 away. Black text reads best on it, at 14.97:1.
| Hue family | Blues |
| Lightness | light (89%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.97:1 |
| White text | 1.40:1 |
Values
| HEX | #C6DDEE |
| RGB | rgb(198, 221, 238) |
| HSL | hsl(206, 54%, 85%) |
| OKLCH | oklch(88.6% 0.034 239.9) |
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 #C6DDEE | 1.40:1 | Fails | Lc -22.2 | Dividers and decoration only |
| Black text on #C6DDEE | 14.97:1 | AAA | Lc 84.2 | Fine for body text |
| #C6DDEE text on white | 1.40:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #C6DDEE text on black | 14.97:1 | AAA | Lc -84.0 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF2
oklch(93.6% 0.013 244.3)
-
Step 200
200 (this color)
#C6DDEE
oklch(88.6% 0.034 239.9)
-
Step 300
300
#A8C5DA
oklch(80.9% 0.043 239.6)
-
Step 400
400
#78A7C8
oklch(70.7% 0.07 239.6)
-
Step 500
500
#5391BA
oklch(63.2% 0.089 239.3)
-
Step 600
600
#357AA6
oklch(55.5% 0.097 239.8)
-
Step 700
700
#27678F
oklch(49.2% 0.091 239.9)
-
Step 800
800
#225474
oklch(42.7% 0.075 240)
-
Step 900
900
#22465D
oklch(37.8% 0.057 238.8)
-
Step 950
950
#152937
oklch(27.1% 0.037 240.5)
#C6DDEE 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) | #D6DCEF | 0.021 |
| Deuteranopia (no green cones) | #D1D8EE | 0.018 |
| Tritanopia (no blue cones) | #BCE1E2 | 0.026 |
| Achromatopsia (no color) | #DADADA | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C6DDEE
#C6DDEE
oklch(88.6% 0.034 239.9)
- #EBD5C4
#EBD5C4
oklch(88.7% 0.034 60.1)
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 #C6DDEE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.030
- Powder Blue #B0E0E6 ΔE 0.031
- Gainsboro #DCDCDC ΔE 0.035
- Light Blue #ADD8E6 ΔE 0.036
- Pale Silver #D8E2DC ΔE 0.039
- Light Gray #D3D3D3 ΔE 0.039
- Platinum #E0E1DD ΔE 0.043
- Celeste #A8DADC ΔE 0.046
Use #C6DDEE 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.