#00643B
Closest named color: Spruce (#0A5F38). oklch(44.3% 0.105 157.2), rgb(0, 100, 59).
Aa
White text reads best on this color (7.27:1).
About this color
#00643B is a dark, moderately saturated green. In OKLCH its lightness is 44%, its chroma 0.105 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Spruce (#0A5F38), ΔE 0.015 away. White text reads best on it, at 7.27:1.
| Hue family | Greens |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.105) |
| Temperature | in between |
| Nearest name | Spruce (#0A5F38) |
| Black text | 2.88:1 |
| White text | 7.27:1 |
Values
| HEX | #00643B |
| RGB | rgb(0, 100, 59) |
| HSL | hsl(155, 100%, 20%) |
| OKLCH | oklch(44.3% 0.105 157.2) |
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 #00643B | 7.27:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #00643B | 2.88:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #00643B text on white | 7.27:1 | AAA | Lc 84.7 | Fine for body text |
| #00643B text on black | 2.88:1 | Fails | Lc -17.3 | Dividers and decoration only |
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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E1EEE5
oklch(93.7% 0.018 155.8)
-
Step 200
200
#C8E0D0
oklch(88.4% 0.034 156.5)
-
Step 300
300
#A0CDB1
oklch(80.8% 0.062 157.4)
-
Step 400
400
#69B388
oklch(70.6% 0.098 157.2)
-
Step 500
500
#37A06A
oklch(63.1% 0.126 157)
-
Step 600
600
#008953
oklch(55.5% 0.131 157.3)
-
Step 700
700
#007445
oklch(49.2% 0.117 157)
-
Step 800
800 (this color)
#00643B
oklch(44.3% 0.105 157.2)
-
Step 900
900
#0E4E30
oklch(37.7% 0.081 157.6)
-
Step 950
950
#0C2E1C
oklch(27% 0.052 156.9)
#00643B 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) | #635B38 | 0.095 |
| Deuteranopia (no green cones) | #59543E | 0.093 |
| Tritanopia (no blue cones) | #00635A | 0.050 |
| Achromatopsia (no color) | #575757 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00643B
#00643B
oklch(44.3% 0.105 157.2)
- #773A68
#773A68
oklch(44.3% 0.105 337.4)
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 #00643B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Spruce #0A5F38 ΔE 0.015
- Pine #2B5D34 ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.049
- Deep Green #02590F ΔE 0.053
- Dark Green #006400 ΔE 0.054
- Army Green #4B5D16 ΔE 0.060
- Camouflage Green #4B6113 ΔE 0.061
- Navy Green #35530A ΔE 0.062
Use #00643B 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.