#081728
Closest named color: Rich Black (#0D1B2A). oklch(20.1% 0.04 252.8), rgb(8, 23, 40).
Aa
White text reads best on this color (18.04:1).
About this color
#081728 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.040 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.017 away. White text reads best on it, at 18.04:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.04:1 |
Values
| HEX | #081728 |
| RGB | rgb(8, 23, 40) |
| HSL | hsl(212, 67%, 9%) |
| OKLCH | oklch(20.1% 0.04 252.8) |
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 #081728 | 18.04:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #081728 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #081728 text on white | 18.04:1 | AAA | Lc 104.7 | Preferred for body text |
| #081728 text on black | 1.16:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3DF
oklch(80.8% 0.048 252.4)
-
Step 400
400
#7FA4CF
oklch(70.7% 0.075 252.6)
-
Step 500
500
#5D8DC3
oklch(63.2% 0.097 252.3)
-
Step 600
600
#4376AF
oklch(55.6% 0.105 252.5)
-
Step 700
700
#346397
oklch(49.1% 0.099 252.5)
-
Step 800
800
#2C517A
oklch(42.7% 0.081 252.4)
-
Step 900
900
#284362
oklch(37.6% 0.063 252.8)
-
Step 950
950 (this color)
#081728
oklch(20.1% 0.04 252.8)
#081728 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) | #101829 | 0.013 |
| Deuteranopia (no green cones) | #0B1528 | 0.008 |
| Tritanopia (no blue cones) | #001B1D | 0.033 |
| Achromatopsia (no color) | #161616 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #081728
#081728
oklch(20.1% 0.04 252.8)
- #211301
#211301
oklch(20.1% 0.04 73.9)
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 #081728, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.017
- Rich Navy #001219 ΔE 0.038
- Dark #1B2431 ΔE 0.058
- Almost Black #070D0D ΔE 0.061
- Navy Blue #001146 ΔE 0.064
- Jet #212529 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.068
- Dark Navy #000435 ΔE 0.070
Use #081728 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.