#21633B
Closest named color: Pine (#2B5D34). oklch(44.7% 0.094 153.4), rgb(33, 99, 59).
Aa
White text reads best on this color (7.21:1).
About this color
#21633B is a dark, moderately saturated green. In OKLCH its lightness is 45%, its chroma 0.094 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.019 away. White text reads best on it, at 7.21:1.
| Hue family | Greens |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.094) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.91:1 |
| White text | 7.21:1 |
Values
| HEX | #21633B |
| RGB | rgb(33, 99, 59) |
| HSL | hsl(144, 50%, 26%) |
| OKLCH | oklch(44.7% 0.094 153.4) |
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 #21633B | 7.21:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #21633B | 2.91:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #21633B text on white | 7.21:1 | AAA | Lc 84.8 | Fine for body text |
| #21633B text on black | 2.91:1 | Fails | Lc -17.2 | 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
#F2F7F3
oklch(97.1% 0.007 151.9)
-
Step 100
100
#E2EDE5
oklch(93.6% 0.016 154.5)
-
Step 200
200
#CBDFD0
oklch(88.5% 0.029 153.3)
-
Step 300
300
#A6CBB0
oklch(80.8% 0.055 153.4)
-
Step 400
400
#75B187
oklch(70.8% 0.088 153.2)
-
Step 500
500
#4D9D69
oklch(63.1% 0.112 153.3)
-
Step 600
600
#2A8750
oklch(55.5% 0.122 153.4)
-
Step 700
700
#1B7341
oklch(49.2% 0.114 153.4)
-
Step 800
800 (this color)
#21633B
oklch(44.7% 0.094 153.4)
-
Step 900
900
#1D4D2F
oklch(37.8% 0.073 153.5)
-
Step 950
950
#122D1C
oklch(27% 0.046 154.3)
#21633B 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 | 0.081 |
| Deuteranopia (no green cones) | #5A553E | 0.079 |
| Tritanopia (no blue cones) | #066259 | 0.048 |
| Achromatopsia (no color) | #575757 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21633B
#21633B
oklch(44.7% 0.094 153.4)
- #733F6A
#733F6A
oklch(44.7% 0.094 333.7)
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 #21633B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.019
- Spruce #0A5F38 ΔE 0.019
- Dark Green Blue #1F6357 ΔE 0.043
- Army Green #4B5D16 ΔE 0.050
- Camouflage Green #4B6113 ΔE 0.052
- Camo Green #526525 ΔE 0.056
- Navy Green #35530A ΔE 0.059
- Deep Green #02590F ΔE 0.059
Use #21633B 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.