#0F1835
Closest named color: Rich Black (#0D1B2A). oklch(21.9% 0.058 268.3), rgb(15, 24, 53).
Aa
White text reads best on this color (17.46:1).
About this color
#0F1835 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.058 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 17.46:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.46:1 |
Values
| HEX | #0F1835 |
| RGB | rgb(15, 24, 53) |
| HSL | hsl(226, 56%, 13%) |
| OKLCH | oklch(21.9% 0.058 268.3) |
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 #0F1835 | 17.46:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #0F1835 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #0F1835 text on white | 17.46:1 | AAA | Lc 104.2 | Preferred for body text |
| #0F1835 text on black | 1.20:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF8
oklch(93.7% 0.02 267.3)
-
Step 200
200
#CED9F3
oklch(88.5% 0.038 267.3)
-
Step 300
300
#AEC0EE
oklch(81% 0.068 268.2)
-
Step 400
400
#849EE6
oklch(70.8% 0.11 268.4)
-
Step 500
500
#6684DE
oklch(63.2% 0.14 268.3)
-
Step 600
600
#4E6BCC
oklch(55.6% 0.153 268.5)
-
Step 700
700
#3F59B0
oklch(49.1% 0.142 268.3)
-
Step 800
800
#34498F
oklch(42.7% 0.118 268.5)
-
Step 900
900
#2D3E72
oklch(37.7% 0.092 268.2)
-
Step 950
950 (this color)
#0F1835
oklch(21.9% 0.058 268.3)
#0F1835 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) | #0A1B36 | 0.011 |
| Deuteranopia (no green cones) | #051834 | 0.013 |
| Tritanopia (no blue cones) | #001F23 | 0.052 |
| Achromatopsia (no color) | #1A1A1A | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0F1835
#0F1835
oklch(21.9% 0.058 268.3)
- #231900
#231900
oklch(22% 0.045 88.5)
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 #0F1835, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Navy Blue #001146 ΔE 0.046
- Dark #1B2431 ΔE 0.050
- Oxford Blue #1B263B ΔE 0.053
- Rich Navy #001219 ΔE 0.066
- Jet #212529 ΔE 0.066
- Night Blue #040348 ΔE 0.068
- Dark Navy #000435 ΔE 0.070
Use #0F1835 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.