#263775
Closest named color: Marine Blue (#01386A). oklch(35.9% 0.108 268.9), rgb(38, 55, 117).
Aa
White text reads best on this color (11.13:1).
About this color
#263775 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.108 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.037 away. White text reads best on it, at 11.13:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.88:1 |
| White text | 11.13:1 |
Values
| HEX | #263775 |
| RGB | rgb(38, 55, 117) |
| HSL | hsl(227, 51%, 30%) |
| OKLCH | oklch(35.9% 0.108 268.9) |
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 #263775 | 11.13:1 | AAA | Lc -99.3 | Preferred for body text |
| Black text on #263775 | 1.88:1 | Fails | Lc 8.4 | Not readable |
| #263775 text on white | 11.13:1 | AAA | Lc 95.5 | Preferred for body text |
| #263775 text on black | 1.88:1 | Fails | Lc 0.0 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F8
oklch(88.6% 0.045 268.7)
-
Step 300
300
#ABBFF6
oklch(80.9% 0.081 269)
-
Step 400
400
#7F9CF2
oklch(70.7% 0.13 268.8)
-
Step 500
500
#6181ED
oklch(63.2% 0.166 268.9)
-
Step 600
600
#4967DB
oklch(55.5% 0.18 268.9)
-
Step 700
700
#3B55BE
oklch(49.1% 0.167 268.9)
-
Step 800
800
#30469A
oklch(42.6% 0.14 268.7)
-
Step 900
900 (this color)
#263775
oklch(35.9% 0.108 268.9)
-
Step 950
950
#192448
oklch(27.1% 0.068 268.7)
#263775 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) | #133F77 | 0.026 |
| Deuteranopia (no green cones) | #003874 | 0.030 |
| Tritanopia (no blue cones) | #004550 | 0.090 |
| Achromatopsia (no color) | #3B3B3B | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263775
#263775
oklch(35.9% 0.108 268.9)
- #4C3A00
#4C3A00
oklch(35.8% 0.073 89.1)
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 #263775, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.037
- Twilight Blue #0A437A ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.054
- Marine #042E60 ΔE 0.058
- Cobalt #1E488F ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.071
- Light Navy #155084 ΔE 0.073
Use #263775 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.