#005B21
Closest named color: Deep Green (#02590F). oklch(41.1% 0.118 148.2), rgb(0, 91, 33).
Aa
White text reads best on this color (8.33:1).
About this color
#005B21 is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.118 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Green (#02590F), ΔE 0.016 away. White text reads best on it, at 8.33:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Deep Green (#02590F) |
| Black text | 2.51:1 |
| White text | 8.33:1 |
Values
| HEX | #005B21 |
| RGB | rgb(0, 91, 33) |
| HSL | hsl(142, 100%, 18%) |
| OKLCH | oklch(41.1% 0.118 148.2) |
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 #005B21 | 8.33:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #005B21 | 2.51:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #005B21 text on white | 8.33:1 | AAA | Lc 88.2 | Fine for body text |
| #005B21 text on black | 2.51:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C9E1CB
oklch(88.6% 0.039 147.6)
-
Step 300
300
#A3CDA8
oklch(80.8% 0.068 148.2)
-
Step 400
400
#6EB479
oklch(70.8% 0.111 148.1)
-
Step 500
500
#41A056
oklch(63.1% 0.141 148.2)
-
Step 600
600
#138A3A
oklch(55.5% 0.153 148.2)
-
Step 700
700
#00752D
oklch(49.1% 0.141 148.2)
-
Step 800
800 (this color)
#005B21
oklch(41.1% 0.118 148.2)
-
Step 900
900
#154E23
oklch(37.6% 0.092 148.1)
-
Step 950
950
#0F2E15
oklch(27% 0.059 147.8)
#005B21 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) | #5C521B | 0.093 |
| Deuteranopia (no green cones) | #534B26 | 0.094 |
| Tritanopia (no blue cones) | #00594E | 0.069 |
| Achromatopsia (no color) | #4E4E4E | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005B21
#005B21
oklch(41.1% 0.118 148.2)
- #6B2F6A
#6B2F6A
oklch(41.1% 0.117 328.1)
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 #005B21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Green #02590F ΔE 0.016
- Forest #0B5509 ΔE 0.024
- Spruce #0A5F38 ΔE 0.031
- Navy Green #35530A ΔE 0.038
- Pine #2B5D34 ΔE 0.039
- Dark Green #006400 ΔE 0.041
- Bottle Green #044A05 ΔE 0.056
- Darkgreen #054907 ΔE 0.059
Use #005B21 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.