#23263F
Closest named color: Oxford Blue (#1B263B). oklch(27.8% 0.046 277.7), rgb(35, 38, 63).
Aa
White text reads best on this color (14.78:1).
About this color
#23263F is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.046 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.015 away. White text reads best on it, at 14.78:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.78:1 |
Values
| HEX | #23263F |
| RGB | rgb(35, 38, 63) |
| HSL | hsl(234, 29%, 19%) |
| OKLCH | oklch(27.8% 0.046 277.7) |
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 #23263F | 14.78:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #23263F | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #23263F text on white | 14.78:1 | AAA | Lc 101.6 | Preferred for body text |
| #23263F text on black | 1.42:1 | 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 950.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8EE
oklch(88.6% 0.03 277.6)
-
Step 300
300
#B8BEE4
oklch(80.9% 0.054 278.1)
-
Step 400
400
#939CD7
oklch(70.8% 0.087 277.2)
-
Step 500
500
#7982CC
oklch(63.1% 0.112 277.4)
-
Step 600
600
#636AB9
oklch(55.5% 0.122 277.8)
-
Step 700
700
#5258A0
oklch(49% 0.114 277.7)
-
Step 800
800
#434881
oklch(42.6% 0.094 277.8)
-
Step 900
900
#393D68
oklch(37.7% 0.073 278.2)
-
Step 950
950 (this color)
#23263F
oklch(27.8% 0.046 277.7)
#23263F 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) | #1E2940 | 0.012 |
| Deuteranopia (no green cones) | #1C273E | 0.012 |
| Tritanopia (no blue cones) | #1B2B2F | 0.041 |
| Achromatopsia (no color) | #282828 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23263F
#23263F
oklch(27.8% 0.046 277.7)
- #2F280B
#2F280B
oklch(27.8% 0.045 95.7)
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 #23263F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.015
- Space Cadet #2B2D42 ΔE 0.028
- Dark #1B2431 ΔE 0.030
- Jet #212529 ΔE 0.042
- Gunmetal #293241 ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.057
- Rich Black #0D1B2A ΔE 0.064
- Marine #042E60 ΔE 0.065
Use #23263F 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.