#21583A
Closest named color: Pine (#2B5D34). oklch(41.5% 0.077 156.6), rgb(33, 88, 58).
Aa
White text reads best on this color (8.32:1).
About this color
#21583A is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.077 and its hue 157°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pine (#2B5D34), ΔE 0.023 away. White text reads best on it, at 8.32:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Pine (#2B5D34) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #21583A |
| RGB | rgb(33, 88, 58) |
| HSL | hsl(147, 45%, 24%) |
| OKLCH | oklch(41.5% 0.077 156.6) |
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 #21583A | 8.32:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #21583A | 2.52:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #21583A text on white | 8.32:1 | AAA | Lc 88.5 | Fine for body text |
| #21583A text on black | 2.52:1 | Fails | Lc -13.7 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE6
oklch(93.7% 0.014 155.6)
-
Step 200
200
#CCDED2
oklch(88.4% 0.025 156.7)
-
Step 300
300
#AACAB5
oklch(81% 0.045 156.5)
-
Step 400
400
#7BAF8E
oklch(70.8% 0.073 156.2)
-
Step 500
500
#579A72
oklch(63% 0.092 156.3)
-
Step 600
600
#39855B
oklch(55.7% 0.1 156.6)
-
Step 700
700
#2A704A
oklch(49% 0.094 156.5)
-
Step 800
800 (this color)
#21583A
oklch(41.5% 0.077 156.6)
-
Step 900
900
#244B34
oklch(37.7% 0.06 156.1)
-
Step 950
950
#162C1F
oklch(27% 0.037 156.8)
#21583A 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) | #575138 | 0.070 |
| Deuteranopia (no green cones) | #504C3C | 0.069 |
| Tritanopia (no blue cones) | #0D5750 | 0.037 |
| Achromatopsia (no color) | #4E4E4E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21583A
#21583A
oklch(41.5% 0.077 156.6)
- #663A5B
#663A5B
oklch(41.4% 0.078 336.8)
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 #21583A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pine #2B5D34 ΔE 0.023
- Spruce #0A5F38 ΔE 0.026
- Dark Blue Green #005249 ΔE 0.040
- Navy Green #35530A ΔE 0.049
- Dark Green Blue #1F6357 ΔE 0.049
- Dark Slate Gray #2F4F4F ΔE 0.055
- Deep Teal #00555A ΔE 0.057
- Deep Green #02590F ΔE 0.057
Use #21583A 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.