#0F2A3E
Closest named color: Oxford Blue (#1B263B). oklch(27.5% 0.05 243.5), rgb(15, 42, 62).
Aa
White text reads best on this color (14.77:1).
About this color
#0F2A3E is a dark, muted blue. In OKLCH its lightness is 27%, its chroma 0.050 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.018 away. White text reads best on it, at 14.77:1.
| Hue family | Blues |
| Lightness | dark (27%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.42:1 |
| White text | 14.77:1 |
Values
| HEX | #0F2A3E |
| RGB | rgb(15, 42, 62) |
| HSL | hsl(206, 61%, 15%) |
| OKLCH | oklch(27.5% 0.05 243.5) |
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 #0F2A3E | 14.77:1 | AAA | Lc -104.3 | Preferred for body text |
| Black text on #0F2A3E | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #0F2A3E text on white | 14.77:1 | AAA | Lc 101.5 | Preferred for body text |
| #0F2A3E 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1EBF5
oklch(93.5% 0.017 248)
-
Step 200
200
#C8DCEE
oklch(88.5% 0.033 245.3)
-
Step 300
300
#A1C6E4
oklch(81% 0.058 243)
-
Step 400
400
#6BA7D7
oklch(70.6% 0.094 243.8)
-
Step 500
500
#3E90CC
oklch(63% 0.12 243.7)
-
Step 600
600
#117AB9
oklch(55.7% 0.13 243.2)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#085381
oklch(42.6% 0.101 243.7)
-
Step 900
900
#144568
oklch(37.6% 0.079 244.1)
-
Step 950
950 (this color)
#0F2A3E
oklch(27.5% 0.05 243.5)
#0F2A3E 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) | #212A3F | 0.023 |
| Deuteranopia (no green cones) | #1B263E | 0.018 |
| Tritanopia (no blue cones) | #002F31 | 0.037 |
| Achromatopsia (no color) | #282828 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F2A3E
#0F2A3E
oklch(27.5% 0.05 243.5)
- #38220B
#38220B
oklch(27.5% 0.049 64.3)
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 #0F2A3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.018
- Dark #1B2431 ΔE 0.029
- Space Cadet #2B2D42 ΔE 0.042
- Jet #212529 ΔE 0.042
- Gunmetal #293241 ΔE 0.047
- Midnight Green #073B4C ΔE 0.058
- Prussian Blue #1D3557 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.059
Use #0F2A3E 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.