#21563D
Closest named color: Dark Blue Green (#005249). oklch(41% 0.071 160.3), rgb(33, 86, 61).
Aa
White text reads best on this color (8.52:1).
About this color
#21563D is a dark, moderately saturated green. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.031 away. White text reads best on it, at 8.52:1.
| Hue family | Greens |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.46:1 |
| White text | 8.52:1 |
Values
| HEX | #21563D |
| RGB | rgb(33, 86, 61) |
| HSL | hsl(152, 45%, 23%) |
| OKLCH | oklch(41% 0.071 160.3) |
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 #21563D | 8.52:1 | AAA | Lc -93.7 | Preferred for body text |
| Black text on #21563D | 2.46:1 | Fails | Lc 14.9 | Not readable |
| #21563D text on white | 8.52:1 | AAA | Lc 89.1 | Fine for body text |
| #21563D text on black | 2.46:1 | Fails | Lc -13.1 | 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
#E3ECE7
oklch(93.5% 0.012 162)
-
Step 200
200
#CDDED4
oklch(88.5% 0.023 160.2)
-
Step 300
300
#AAC9B8
oklch(80.8% 0.041 161.4)
-
Step 400
400
#7CAE93
oklch(70.8% 0.066 160.5)
-
Step 500
500
#589978
oklch(63% 0.084 160.5)
-
Step 600
600
#3B8461
oklch(55.7% 0.092 160.4)
-
Step 700
700
#2C7050
oklch(49.2% 0.087 160.2)
-
Step 800
800 (this color)
#21563D
oklch(41% 0.071 160.3)
-
Step 900
900
#244B38
oklch(37.8% 0.056 160.9)
-
Step 950
950
#162C21
oklch(27.1% 0.035 161)
#21563D 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) | #55503C | 0.067 |
| Deuteranopia (no green cones) | #4D4A3F | 0.066 |
| Tritanopia (no blue cones) | #0C564F | 0.030 |
| Achromatopsia (no color) | #4C4C4C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21563D
#21563D
oklch(41% 0.071 160.3)
- #643A56
#643A56
oklch(40.9% 0.072 340.5)
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 #21563D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.031
- Pine #2B5D34 ΔE 0.032
- Spruce #0A5F38 ΔE 0.034
- Dark Slate Gray #2F4F4F ΔE 0.046
- Deep Teal #00555A ΔE 0.050
- Dark Green Blue #1F6357 ΔE 0.050
- Dark Teal #014D4E ΔE 0.051
- Navy Green #35530A ΔE 0.054
Use #21563D 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.