#05201B
Closest named color: Rich Black (#0D1B2A). oklch(22.1% 0.034 178.7), rgb(5, 32, 27).
Aa
White text reads best on this color (17.08:1).
About this color
#05201B is a very dark, muted teal or cyan. In OKLCH its lightness is 22%, its chroma 0.034 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.042 away. White text reads best on it, at 17.08:1.
| Hue family | Teals and cyans |
| Lightness | very dark (22%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.08:1 |
Values
| HEX | #05201B |
| RGB | rgb(5, 32, 27) |
| HSL | hsl(169, 73%, 7%) |
| OKLCH | oklch(22.1% 0.034 178.7) |
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 #05201B | 17.08:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #05201B | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #05201B text on white | 17.08:1 | AAA | Lc 103.9 | Preferred for body text |
| #05201B 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDEA
oklch(93.7% 0.012 178)
-
Step 200
200
#CADED9
oklch(88.4% 0.022 179.1)
-
Step 300
300
#A5CAC1
oklch(81% 0.041 178.8)
-
Step 400
400
#73AEA1
oklch(70.6% 0.064 178.9)
-
Step 500
500
#499A8A
oklch(63.1% 0.083 178.8)
-
Step 600
600
#248474
oklch(55.5% 0.09 179.1)
-
Step 700
700
#147061
oklch(49.1% 0.084 178.5)
-
Step 800
800
#165B4F
oklch(42.6% 0.07 178.5)
-
Step 900
900
#1B4B42
oklch(37.7% 0.054 178.9)
-
Step 950
950 (this color)
#05201B
oklch(22.1% 0.034 178.7)
#05201B 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) | #1E1D1B | 0.036 |
| Deuteranopia (no green cones) | #1A1B1B | 0.033 |
| Tritanopia (no blue cones) | #00211E | 0.007 |
| Achromatopsia (no color) | #1C1C1C | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05201B
#05201B
oklch(22.1% 0.034 178.7)
- #28141A
#28141A
oklch(22.2% 0.034 0.9)
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 #05201B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.042
- Jet #212529 ΔE 0.052
- Dark #1B2431 ΔE 0.054
- Rich Navy #001219 ΔE 0.058
- Dark Forest Green #002D04 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.071
- Very Dark Green #062E03 ΔE 0.072
- Almost Black #070D0D ΔE 0.073
Use #05201B 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.