#0A0F25
Closest named color: Rich Navy (#001219). oklch(17.8% 0.046 271.4), rgb(10, 15, 37).
Aa
White text reads best on this color (18.95:1).
About this color
#0A0F25 is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.046 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.036 away. White text reads best on it, at 18.95:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 18.95:1 |
Values
| HEX | #0A0F25 |
| RGB | rgb(10, 15, 37) |
| HSL | hsl(229, 57%, 9%) |
| OKLCH | oklch(17.8% 0.046 271.4) |
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 #0A0F25 | 18.95:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #0A0F25 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #0A0F25 text on white | 18.95:1 | AAA | Lc 105.3 | Preferred for body text |
| #0A0F25 text on black | 1.10:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF5
oklch(93.7% 0.015 270)
-
Step 200
200
#D2D9EE
oklch(88.6% 0.03 271.1)
-
Step 300
300
#B4BFE5
oklch(80.9% 0.055 272.4)
-
Step 400
400
#8D9ED7
oklch(70.8% 0.086 271.3)
-
Step 500
500
#7185CD
oklch(63.2% 0.111 271.1)
-
Step 600
600
#5A6DBA
oklch(55.6% 0.122 271.5)
-
Step 700
700
#4A5BA0
oklch(49.1% 0.112 271.3)
-
Step 800
800
#3D4B82
oklch(42.8% 0.093 271.3)
-
Step 900
900
#343F68
oklch(37.8% 0.072 271.3)
-
Step 950
950 (this color)
#0A0F25
oklch(17.8% 0.046 271.4)
#0A0F25 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) | #061226 | 0.011 |
| Deuteranopia (no green cones) | #030F25 | 0.013 |
| Tritanopia (no blue cones) | #001418 | 0.041 |
| Achromatopsia (no color) | #111111 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0F25
#0A0F25
oklch(17.8% 0.046 271.4)
- #171000
#171000
oklch(17.7% 0.036 90.4)
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 #0A0F25, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.036
- Rich Black #0D1B2A ΔE 0.044
- Almost Black #070D0D ΔE 0.051
- Dark Navy #000435 ΔE 0.054
- Midnight #03012D ΔE 0.055
- Dark Navy Blue #00022E ΔE 0.057
- Very Dark Blue #000133 ΔE 0.061
- Navy Blue #001146 ΔE 0.066
Use #0A0F25 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.