#21503A
Closest named color: Dark Blue Green (#005249). oklch(39.2% 0.064 160.9), rgb(33, 80, 58).
Aa
White text reads best on this color (9.23:1).
About this color
#21503A is a dark, muted green. In OKLCH its lightness is 39%, its chroma 0.064 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.026 away. White text reads best on it, at 9.23:1.
| Hue family | Greens |
| Lightness | dark (39%) |
| Chroma | muted (0.064) |
| Temperature | in between |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.27:1 |
| White text | 9.23:1 |
Values
| HEX | #21503A |
| RGB | rgb(33, 80, 58) |
| HSL | hsl(152, 42%, 22%) |
| OKLCH | oklch(39.2% 0.064 160.9) |
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 #21503A | 9.23:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #21503A | 2.27:1 | Fails | Lc 12.8 | Not readable |
| #21503A text on white | 9.23:1 | AAA | Lc 91.1 | Preferred for body text |
| #21503A text on black | 2.27:1 | Fails | Lc -11.2 | 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
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E2EDE7
oklch(93.6% 0.014 162.5)
-
Step 200
200
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A6CBB7
oklch(81% 0.048 161.5)
-
Step 400
400
#74B091
oklch(70.7% 0.078 161)
-
Step 500
500
#4C9C76
oklch(63.1% 0.099 161)
-
Step 600
600
#29865E
oklch(55.5% 0.107 160.8)
-
Step 700
700
#1A724E
oklch(49.2% 0.1 160.9)
-
Step 800
800
#195D40
oklch(42.8% 0.083 160.9)
-
Step 900
900 (this color)
#21503A
oklch(39.2% 0.064 160.9)
-
Step 950
950
#122D20
oklch(27.1% 0.041 160.9)
#21503A 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) | #4F4A39 | 0.062 |
| Deuteranopia (no green cones) | #48453B | 0.060 |
| Tritanopia (no blue cones) | #10504A | 0.027 |
| Achromatopsia (no color) | #474747 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21503A
#21503A
oklch(39.2% 0.064 160.9)
- #5D3750
#5D3750
oklch(39.2% 0.065 340.8)
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 #21503A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.026
- Dark Teal #014D4E ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.041
- Evergreen #05472A ΔE 0.043
- Pine #2B5D34 ΔE 0.049
- Deep Teal #00555A ΔE 0.050
- Pine Green #0A481E ΔE 0.050
- Spruce #0A5F38 ΔE 0.051
Use #21503A 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.