#21865D
Closest named color: Sea Green (#2E8B57). oklch(55.3% 0.111 161.2), rgb(33, 134, 93).
Aa
Black text reads best on this color (4.63:1).
About this color
#21865D is a medium-dark, moderately saturated green. In OKLCH its lightness is 55%, its chroma 0.111 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Sea Green (#2E8B57), ΔE 0.021 away. Black text reads best on it, at 4.63:1.
| Hue family | Greens |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.111) |
| Temperature | in between |
| Nearest name | Sea Green (#2E8B57) |
| Black text | 4.63:1 |
| White text | 4.53:1 |
Values
| HEX | #21865D |
| RGB | rgb(33, 134, 93) |
| HSL | hsl(156, 60%, 33%) |
| OKLCH | oklch(55.3% 0.111 161.2) |
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 #21865D | 4.53:1 | AA | Lc -76.6 | Fine for body text |
| Black text on #21865D | 4.63:1 | AA | Lc 33.0 | Non-text elements, placeholder text |
| #21865D text on white | 4.53:1 | AA | Lc 71.1 | Content text, not long reading |
| #21865D text on black | 4.63:1 | AA | Lc -30.6 | Non-text elements, placeholder text |
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 600.
-
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
#CADFD3
oklch(88.5% 0.028 160.8)
-
Step 300
300
#A5CBB6
oklch(80.9% 0.05 160.9)
-
Step 400
400
#72B091
oklch(70.6% 0.079 161.7)
-
Step 500
500
#489D75
oklch(63.2% 0.103 160.9)
-
Step 600
600 (this color)
#21865D
oklch(55.3% 0.111 161.2)
-
Step 700
700
#11724D
oklch(49% 0.103 161.2)
-
Step 800
800
#145D40
oklch(42.7% 0.085 161.7)
-
Step 900
900
#1A4C36
oklch(37.6% 0.066 161.5)
-
Step 950
950
#112D20
oklch(27.1% 0.042 161.5)
#21865D 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) | #847C5B | 0.106 |
| Deuteranopia (no green cones) | #777260 | 0.103 |
| Tritanopia (no blue cones) | #00867B | 0.045 |
| Achromatopsia (no color) | #767676 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21865D
#21865D
oklch(55.3% 0.111 161.2)
- #9D5685
#9D5685
oklch(55.2% 0.111 341.3)
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 #21865D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Green #2E8B57 ΔE 0.021
- Viridian #1E9167 ΔE 0.033
- Jungle Green #048243 ΔE 0.038
- Dark Sage #598556 ΔE 0.044
- Light Forest Green #4F9153 ΔE 0.054
- Fern Green #548D44 ΔE 0.056
- Teal #008080 ΔE 0.062
- Ocean Green #3D9973 ΔE 0.065
Use #21865D 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.