#00263D
Closest named color: Oxford Blue (#1B263B). oklch(25.7% 0.06 240.9), rgb(0, 38, 61).
Aa
White text reads best on this color (15.61:1).
About this color
#00263D is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.060 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.029 away. White text reads best on it, at 15.61:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.61:1 |
Values
| HEX | #00263D |
| RGB | rgb(0, 38, 61) |
| HSL | hsl(203, 100%, 12%) |
| OKLCH | oklch(25.7% 0.06 240.9) |
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 #00263D | 15.61:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #00263D | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #00263D text on white | 15.61:1 | AAA | Lc 102.3 | Preferred for body text |
| #00263D text on black | 1.34:1 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DEECF7
oklch(93.6% 0.021 241.4)
-
Step 200
200
#C3DDF1
oklch(88.5% 0.039 241.1)
-
Step 300
300
#98C7EA
oklch(80.9% 0.07 240.9)
-
Step 400
400
#59A9E0
oklch(70.7% 0.113 240.9)
-
Step 500
500
#0B92D8
oklch(63.1% 0.145 241.1)
-
Step 600
600
#007BB7
oklch(55.7% 0.129 240.7)
-
Step 700
700
#00679B
oklch(49.1% 0.115 241)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950 (this color)
#00263D
oklch(25.7% 0.06 240.9)
#00263D 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) | #1B273E | 0.029 |
| Deuteranopia (no green cones) | #12213D | 0.022 |
| Tritanopia (no blue cones) | #002C2E | 0.041 |
| Achromatopsia (no color) | #242424 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00263D
#00263D
oklch(25.7% 0.06 240.9)
- #371B00
#371B00
oklch(25.6% 0.059 61.1)
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 #00263D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.029
- Dark #1B2431 ΔE 0.034
- Rich Black #0D1B2A ΔE 0.047
- Jet #212529 ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.062
- Marine #042E60 ΔE 0.067
- Gunmetal #293241 ΔE 0.067
- Navy Blue #001146 ΔE 0.069
Use #00263D 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.