#21734E
Closest named color: Dark Aquamarine (#017371). oklch(49.7% 0.098 159.6), rgb(33, 115, 78).
Aa
White text reads best on this color (5.78:1).
About this color
#21734E is a medium-dark, moderately saturated green. In OKLCH its lightness is 50%, its chroma 0.098 and its hue 160°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.054 away. White text reads best on it, at 5.78:1.
| Hue family | Greens |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.62:1 |
| White text | 5.78:1 |
Values
| HEX | #21734E |
| RGB | rgb(33, 115, 78) |
| HSL | hsl(153, 55%, 29%) |
| OKLCH | oklch(49.7% 0.098 159.6) |
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 #21734E | 5.78:1 | AA | Lc -83.9 | Fine for body text |
| Black text on #21734E | 3.62:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #21734E text on white | 5.78:1 | AA | Lc 78.6 | Fine for body text |
| #21734E text on black | 3.62:1 | AA large text | Lc -23.1 | 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 700.
-
Step 50
50
#F2F7F4
oklch(97.2% 0.007 160.1)
-
Step 100
100
#E3EDE7
oklch(93.7% 0.013 159.9)
-
Step 200
200
#CBDFD3
oklch(88.5% 0.027 159.5)
-
Step 300
300
#A7CBB6
oklch(81% 0.048 159.5)
-
Step 400
400
#76B090
oklch(70.8% 0.077 159.5)
-
Step 500
500
#4F9C74
oklch(63.2% 0.098 159.1)
-
Step 600
600
#2E865D
oklch(55.6% 0.106 159.5)
-
Step 700
700 (this color)
#21734E
oklch(49.7% 0.098 159.6)
-
Step 800
800
#1D5C3F
oklch(42.6% 0.081 159.8)
-
Step 900
900
#1F4C35
oklch(37.8% 0.064 158.8)
-
Step 950
950
#132C1F
oklch(26.8% 0.04 159.4)
#21734E 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) | #726A4C | 0.093 |
| Deuteranopia (no green cones) | #676250 | 0.090 |
| Tritanopia (no blue cones) | #007269 | 0.043 |
| Achromatopsia (no color) | #656565 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21734E
#21734E
oklch(49.7% 0.098 159.6)
- #864A74
#864A74
oklch(49.5% 0.099 339.3)
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 #21734E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.054
- Jungle Green #048243 ΔE 0.054
- Dark Olive Green #556B2F ΔE 0.055
- Dark Green Blue #1F6357 ΔE 0.058
- Deep Turquoise #017374 ΔE 0.059
- Camo Green #526525 ΔE 0.062
- Bluegreen #017A79 ΔE 0.062
- Dark Moss Green #606C38 ΔE 0.064
Use #21734E 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.