#0A132E
Closest named color: Rich Black (#0D1B2A). oklch(19.6% 0.056 267.3), rgb(10, 19, 46).
Aa
White text reads best on this color (18.33:1).
About this color
#0A132E is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.056 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.032 away. White text reads best on it, at 18.33:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.14:1 |
| White text | 18.33:1 |
Values
| HEX | #0A132E |
| RGB | rgb(10, 19, 46) |
| HSL | hsl(225, 64%, 11%) |
| OKLCH | oklch(19.6% 0.056 267.3) |
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 #0A132E | 18.33:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #0A132E | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0A132E text on white | 18.33:1 | AAA | Lc 104.9 | Preferred for body text |
| #0A132E text on black | 1.14:1 | 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
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CED9F2
oklch(88.5% 0.036 266.7)
-
Step 300
300
#AEC0EC
oklch(80.9% 0.066 267.5)
-
Step 400
400
#839EE3
oklch(70.6% 0.106 267.3)
-
Step 500
500
#6585DB
oklch(63.2% 0.135 267.1)
-
Step 600
600
#4D6DC8
oklch(55.6% 0.146 267)
-
Step 700
700
#3E5AAD
oklch(49% 0.136 267.2)
-
Step 800
800
#334A8C
oklch(42.6% 0.113 267.1)
-
Step 900
900
#2D3E70
oklch(37.6% 0.088 267.9)
-
Step 950
950 (this color)
#0A132E
oklch(19.6% 0.056 267.3)
#0A132E 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) | #06162F | 0.011 |
| Deuteranopia (no green cones) | #02132D | 0.013 |
| Tritanopia (no blue cones) | #00191E | 0.046 |
| Achromatopsia (no color) | #151515 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A132E
#0A132E
oklch(19.6% 0.056 267.3)
- #1D1400
#1D1400
oklch(19.7% 0.04 87.9)
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 #0A132E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.032
- Rich Navy #001219 ΔE 0.048
- Navy Blue #001146 ΔE 0.049
- Dark Navy #000435 ΔE 0.054
- Midnight #03012D ΔE 0.063
- Dark Navy Blue #00022E ΔE 0.063
- Night Blue #040348 ΔE 0.064
- Very Dark Blue #000133 ΔE 0.064
Use #0A132E 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.