#00254B
Closest named color: Oxford Blue (#1B263B). oklch(26.5% 0.081 252.9), rgb(0, 37, 75).
Aa
White text reads best on this color (15.37:1).
About this color
#00254B is a dark, moderately saturated blue. In OKLCH its lightness is 26%, its chroma 0.081 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.041 away. White text reads best on it, at 15.37:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.36:1 |
| White text | 15.37:1 |
Values
| HEX | #00254B |
| RGB | rgb(0, 37, 75) |
| HSL | hsl(210, 100%, 15%) |
| OKLCH | oklch(26.5% 0.081 252.9) |
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 #00254B | 15.37:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #00254B | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #00254B text on white | 15.37:1 | AAA | Lc 101.9 | Preferred for body text |
| #00254B text on black | 1.36:1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DDEBFD
oklch(93.5% 0.029 254.7)
-
Step 200
200
#C1DCFC
oklch(88.5% 0.053 252.8)
-
Step 300
300
#94C5FE
oklch(81% 0.096 252.7)
-
Step 400
400
#53A4FD
oklch(70.8% 0.153 252.7)
-
Step 500
500
#0089FA
oklch(63.1% 0.195 253)
-
Step 600
600
#0073D3
oklch(55.6% 0.171 252.9)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900
#00417D
oklch(37.6% 0.117 253.3)
-
Step 950
950 (this color)
#00254B
oklch(26.5% 0.081 252.9)
#00254B 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) | #10284C | 0.019 |
| Deuteranopia (no green cones) | #00224A | 0.010 |
| Tritanopia (no blue cones) | #002E34 | 0.059 |
| Achromatopsia (no color) | #252525 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00254B
#00254B
oklch(26.5% 0.081 252.9)
- #352000
#352000
oklch(26.4% 0.056 73.6)
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 #00254B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.041
- Marine #042E60 ΔE 0.046
- Dark #1B2431 ΔE 0.054
- Navy Blue #001146 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.065
- Prussian Blue #1D3557 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.066
- Jet #212529 ΔE 0.072
Use #00254B 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.