#C3D5EF
Closest named color: Cadet Gray (#CED4DA). oklch(86.8% 0.041 257.5), rgb(195, 213, 239).
Aa
Black text reads best on this color (14.08:1).
About this color
#C3D5EF is a light, muted blue. In OKLCH its lightness is 87%, its chroma 0.041 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Gray (#CED4DA), ΔE 0.031 away. Black text reads best on it, at 14.08:1.
| Hue family | Blues |
| Lightness | light (87%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Cadet Gray (#CED4DA) |
| Black text | 14.08:1 |
| White text | 1.49:1 |
Values
| HEX | #C3D5EF |
| RGB | rgb(195, 213, 239) |
| HSL | hsl(215, 58%, 85%) |
| OKLCH | oklch(86.8% 0.041 257.5) |
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 #C3D5EF | 1.49:1 | Fails | Lc -26.2 | Dividers and decoration only |
| Black text on #C3D5EF | 14.08:1 | AAA | Lc 80.7 | Fine for body text |
| #C3D5EF text on white | 1.49:1 | Fails | Lc 23.1 | Dividers and decoration only |
| #C3D5EF text on black | 14.08:1 | AAA | Lc -80.1 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200 (this color)
#C3D5EF
oklch(86.8% 0.041 257.5)
-
Step 300
300
#ACC2E3
oklch(80.8% 0.053 258.4)
-
Step 400
400
#7FA2D5
oklch(70.6% 0.085 257.7)
-
Step 500
500
#5F8BCA
oklch(63.2% 0.107 257.4)
-
Step 600
600
#4574B7
oklch(55.7% 0.117 257.4)
-
Step 700
700
#36619E
oklch(49.2% 0.109 257.4)
-
Step 800
800
#2D4F80
oklch(42.7% 0.091 257.6)
-
Step 900
900
#294267
oklch(37.7% 0.071 258)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#C3D5EF 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) | #CCD6F0 | 0.012 |
| Deuteranopia (no green cones) | #C8D2EE | 0.009 |
| Tritanopia (no blue cones) | #B8DADD | 0.036 |
| Achromatopsia (no color) | #D3D3D3 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C3D5EF
#C3D5EF
oklch(86.8% 0.041 257.5)
- #E3D1B6
#E3D1B6
oklch(86.8% 0.041 78.1)
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 #C3D5EF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Gray #CED4DA ΔE 0.031
- Light Blue #ADD8E6 ΔE 0.032
- Light Blue Grey #B7C9E2 ΔE 0.037
- Light Gray #D3D3D3 ΔE 0.041
- Powder Blue #B0E0E6 ΔE 0.041
- Celeste #A8DADC ΔE 0.048
- Light Periwinkle #C1C6FC ΔE 0.049
- Gainsboro #DCDCDC ΔE 0.049
Use #C3D5EF 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.