#081B39
Closest named color: Rich Black (#0D1B2A). oklch(22.6% 0.063 259.2), rgb(8, 27, 57).
Aa
White text reads best on this color (17.12:1).
About this color
#081B39 is a very dark, muted blue. In OKLCH its lightness is 23%, its chroma 0.063 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.030 away. White text reads best on it, at 17.12:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.12:1 |
Values
| HEX | #081B39 |
| RGB | rgb(8, 27, 57) |
| HSL | hsl(217, 75%, 13%) |
| OKLCH | oklch(22.6% 0.063 259.2) |
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 #081B39 | 17.12:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #081B39 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #081B39 text on white | 17.12:1 | AAA | Lc 103.8 | Preferred for body text |
| #081B39 text on black | 1.22:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DAF5
oklch(88.4% 0.042 259.6)
-
Step 300
300
#A4C2F2
oklch(80.9% 0.076 259.7)
-
Step 400
400
#72A1EB
oklch(70.6% 0.12 259.2)
-
Step 500
500
#4D88E5
oklch(63.2% 0.153 259.2)
-
Step 600
600
#306FD3
oklch(55.5% 0.167 259.4)
-
Step 700
700
#225DB7
oklch(49.2% 0.155 259)
-
Step 800
800
#1E4C94
oklch(42.7% 0.129 259.3)
-
Step 900
900
#1E4076
oklch(37.7% 0.101 259.3)
-
Step 950
950 (this color)
#081B39
oklch(22.6% 0.063 259.2)
#081B39 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) | #0C1E3A | 0.012 |
| Deuteranopia (no green cones) | #031938 | 0.010 |
| Tritanopia (no blue cones) | #002227 | 0.049 |
| Achromatopsia (no color) | #1C1C1C | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #081B39
#081B39
oklch(22.6% 0.063 259.2)
- #281900
#281900
oklch(22.7% 0.047 78.6)
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 #081B39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.030
- Navy Blue #001146 ΔE 0.042
- Dark #1B2431 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.048
- Jet #212529 ΔE 0.065
- Night Blue #040348 ΔE 0.068
- Rich Navy #001219 ΔE 0.071
- Dark Indigo #1F0954 ΔE 0.072
Use #081B39 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.