#0F253A
Closest named color: Oxford Blue (#1B263B). oklch(25.8% 0.049 249.3), rgb(15, 37, 58).
Aa
White text reads best on this color (15.60:1).
About this color
#0F253A is a dark, muted blue. In OKLCH its lightness is 26%, its chroma 0.049 and its hue 249°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.017 away. White text reads best on it, at 15.60:1.
| Hue family | Blues |
| Lightness | dark (26%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.34:1 |
| White text | 15.60:1 |
Values
| HEX | #0F253A |
| RGB | rgb(15, 37, 58) |
| HSL | hsl(209, 59%, 14%) |
| OKLCH | oklch(25.8% 0.049 249.3) |
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 #0F253A | 15.60:1 | AAA | Lc -105.1 | Preferred for body text |
| Black text on #0F253A | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #0F253A text on white | 15.60:1 | AAA | Lc 102.4 | Preferred for body text |
| #0F253A 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#CADBEE
oklch(88.5% 0.032 251.1)
-
Step 300
300
#A5C4E5
oklch(80.9% 0.058 250.2)
-
Step 400
400
#73A5D8
oklch(70.7% 0.092 249.7)
-
Step 500
500
#4C8ECE
oklch(63.1% 0.118 249.6)
-
Step 600
600
#2B77BB
oklch(55.6% 0.129 249.3)
-
Step 700
700
#1D64A1
oklch(49.2% 0.119 249.1)
-
Step 800
800
#1B5282
oklch(42.8% 0.098 248.8)
-
Step 900
900
#1D4468
oklch(37.7% 0.076 248.9)
-
Step 950
950 (this color)
#0F253A
oklch(25.8% 0.049 249.3)
#0F253A 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) | #1C263B | 0.018 |
| Deuteranopia (no green cones) | #16223A | 0.012 |
| Tritanopia (no blue cones) | #002A2C | 0.039 |
| Achromatopsia (no color) | #242424 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F253A
#0F253A
oklch(25.8% 0.049 249.3)
- #331F06
#331F06
oklch(26% 0.049 68.8)
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 #0F253A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.017
- Dark #1B2431 ΔE 0.022
- Jet #212529 ΔE 0.039
- Rich Black #0D1B2A ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.061
- Marine #042E60 ΔE 0.071
- Prussian Blue #1D3557 ΔE 0.073
Use #0F253A 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.