#263D67
Closest named color: Marine Blue (#01386A). oklch(36.3% 0.079 261.6), rgb(38, 61, 103).
Aa
White text reads best on this color (10.79:1).
About this color
#263D67 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.079 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.036 away. White text reads best on it, at 10.79:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.94:1 |
| White text | 10.79:1 |
Values
| HEX | #263D67 |
| RGB | rgb(38, 61, 103) |
| HSL | hsl(219, 46%, 28%) |
| OKLCH | oklch(36.3% 0.079 261.6) |
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 #263D67 | 10.79:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #263D67 | 1.94:1 | Fails | Lc 9.1 | Not readable |
| #263D67 text on white | 10.79:1 | AAA | Lc 94.9 | Preferred for body text |
| #263D67 text on black | 1.94:1 | Fails | Lc -7.8 | Not readable |
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 900.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CDDAEF
oklch(88.5% 0.032 260)
-
Step 300
300
#ACC2E7
oklch(81% 0.058 260.8)
-
Step 400
400
#80A1DC
oklch(70.7% 0.094 261.7)
-
Step 500
500
#6088D2
oklch(63% 0.121 261.9)
-
Step 600
600
#4671BF
oklch(55.6% 0.131 261.4)
-
Step 700
700
#385EA5
oklch(49% 0.122 261.7)
-
Step 800
800
#2F4D86
oklch(42.7% 0.101 262)
-
Step 900
900 (this color)
#263D67
oklch(36.3% 0.079 261.6)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#263D67 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) | #2B4169 | 0.015 |
| Deuteranopia (no green cones) | #223B66 | 0.008 |
| Tritanopia (no blue cones) | #00464D | 0.067 |
| Achromatopsia (no color) | #3D3D3D | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263D67
#263D67
oklch(36.3% 0.079 261.6)
- #523900
#523900
oklch(36.4% 0.075 81)
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 #263D67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.036
- Twilight Blue #0A437A ΔE 0.038
- Prussian Blue #1D3557 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.047
- Charcoal #264653 ΔE 0.051
- Midnight Green #073B4C ΔE 0.057
- Marine #042E60 ΔE 0.061
Use #263D67 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.