#00421B
Closest named color: Hunter Green (#0B4008). oklch(33.2% 0.09 150.5), rgb(0, 66, 27).
Aa
White text reads best on this color (11.69:1).
About this color
#00421B is a dark, moderately saturated green. In OKLCH its lightness is 33%, its chroma 0.090 and its hue 151°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Hunter Green (#0B4008), ΔE 0.018 away. White text reads best on it, at 11.69:1.
| Hue family | Greens |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.090) |
| Temperature | in between |
| Nearest name | Hunter Green (#0B4008) |
| Black text | 1.79:1 |
| White text | 11.69:1 |
Values
| HEX | #00421B |
| RGB | rgb(0, 66, 27) |
| HSL | hsl(145, 100%, 13%) |
| OKLCH | oklch(33.2% 0.09 150.5) |
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 #00421B | 11.69:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #00421B | 1.79:1 | Fails | Lc 7.5 | Not readable |
| #00421B text on white | 11.69:1 | AAA | Lc 96.4 | Preferred for body text |
| #00421B text on black | 1.79:1 | 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 900.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C8E1CD
oklch(88.6% 0.038 151.3)
-
Step 300
300
#A2CEAA
oklch(81% 0.068 150.1)
-
Step 400
400
#6CB47D
oklch(70.8% 0.108 150.4)
-
Step 500
500
#3DA05B
oklch(63% 0.138 150.4)
-
Step 600
600
#038B41
oklch(55.7% 0.151 150.6)
-
Step 700
700
#007535
oklch(49.2% 0.134 150.5)
-
Step 800
800
#01602A
oklch(42.8% 0.116 150.3)
-
Step 900
900 (this color)
#00421B
oklch(33.2% 0.09 150.5)
-
Step 950
950
#0D2E17
oklch(27% 0.057 150.7)
#00421B 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) | #423B18 | 0.074 |
| Deuteranopia (no green cones) | #3B361E | 0.073 |
| Tritanopia (no blue cones) | #004139 | 0.049 |
| Achromatopsia (no color) | #383838 | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00421B
#00421B
oklch(33.2% 0.09 150.5)
- #4F224B
#4F224B
oklch(33.3% 0.09 330.8)
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 #00421B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Hunter Green #0B4008 ΔE 0.018
- Pine Green #0A481E ΔE 0.022
- Forrest Green #154406 ΔE 0.024
- Evergreen #05472A ΔE 0.025
- British Racing Green #05480D ΔE 0.029
- Racing Green #014600 ΔE 0.031
- Darkgreen #054907 ΔE 0.034
- Bottle Green #044A05 ΔE 0.038
Use #00421B 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.