#0F2039
Closest named color: Oxford Blue (#1B263B). oklch(24.3% 0.053 258), rgb(15, 32, 57).
Aa
White text reads best on this color (16.32:1).
About this color
#0F2039 is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.053 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.028 away. White text reads best on it, at 16.32:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.28:1 |
| White text | 16.32:1 |
Values
| HEX | #0F2039 |
| RGB | rgb(15, 32, 57) |
| HSL | hsl(216, 58%, 14%) |
| OKLCH | oklch(24.3% 0.053 258) |
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 #0F2039 | 16.32:1 | AAA | Lc -105.7 | Preferred for body text |
| Black text on #0F2039 | 1.28:1 | Fails | Lc 0.0 | Not readable |
| #0F2039 text on white | 16.32:1 | AAA | Lc 103.2 | Preferred for body text |
| #0F2039 text on black | 1.28:1 | 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
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDAF1
oklch(88.4% 0.036 258.9)
-
Step 300
300
#A8C2EA
oklch(80.8% 0.064 258.9)
-
Step 400
400
#79A2DF
oklch(70.7% 0.101 258.1)
-
Step 500
500
#568AD6
oklch(63.1% 0.128 257.8)
-
Step 600
600
#3A72C4
oklch(55.6% 0.141 258)
-
Step 700
700
#2C5FA9
oklch(49% 0.131 258)
-
Step 800
800
#264E89
oklch(42.7% 0.108 258.2)
-
Step 900
900
#23416D
oklch(37.5% 0.084 257.9)
-
Step 950
950 (this color)
#0F2039
oklch(24.3% 0.053 258)
#0F2039 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) | #15223A | 0.011 |
| Deuteranopia (no green cones) | #0F1E38 | 0.007 |
| Tritanopia (no blue cones) | #002629 | 0.045 |
| Achromatopsia (no color) | #202020 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F2039
#0F2039
oklch(24.3% 0.053 258)
- #2D1C00
#2D1C00
oklch(24.2% 0.051 77.2)
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 #0F2039, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.028
- Dark #1B2431 ΔE 0.029
- Rich Black #0D1B2A ΔE 0.032
- Jet #212529 ΔE 0.048
- Navy Blue #001146 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.066
- Gunmetal #293241 ΔE 0.076
- Marine #042E60 ΔE 0.078
Use #0F2039 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.