#263368
Closest named color: Marine Blue (#01386A). oklch(34% 0.094 270.4), rgb(38, 51, 104).
Aa
White text reads best on this color (11.96:1).
About this color
#263368 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.094 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.032 away. White text reads best on it, at 11.96:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.75:1 |
| White text | 11.96:1 |
Values
| HEX | #263368 |
| RGB | rgb(38, 51, 104) |
| HSL | hsl(228, 46%, 28%) |
| OKLCH | oklch(34% 0.094 270.4) |
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 #263368 | 11.96:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #263368 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #263368 text on white | 11.96:1 | AAA | Lc 97.2 | Preferred for body text |
| #263368 text on black | 1.75:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CFD8F4
oklch(88.4% 0.04 271.4)
-
Step 300
300
#AFBFEF
oklch(80.9% 0.07 270.4)
-
Step 400
400
#869DE7
oklch(70.8% 0.112 270.2)
-
Step 500
500
#6982E0
oklch(63.1% 0.144 270.6)
-
Step 600
600
#516ACE
oklch(55.7% 0.157 270.1)
-
Step 700
700
#4257B2
oklch(49% 0.146 270.4)
-
Step 800
800
#374890
oklch(42.7% 0.12 270.6)
-
Step 900
900 (this color)
#263368
oklch(34% 0.094 270.4)
-
Step 950
950
#1B2443
oklch(26.9% 0.059 269.9)
#263368 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) | #193A6A | 0.023 |
| Deuteranopia (no green cones) | #0D3467 | 0.025 |
| Tritanopia (no blue cones) | #003F48 | 0.082 |
| Achromatopsia (no color) | #373737 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #263368
#263368
oklch(34% 0.094 270.4)
- #463600
#463600
oklch(34.1% 0.07 90.3)
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 #263368, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.034
- Marine #042E60 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.067
- Midnight Green #073B4C ΔE 0.067
- Dark Grey Blue #29465B ΔE 0.069
Use #263368 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.