#21B482
Closest named color: Bluey Green (#2BB179). oklch(68.5% 0.139 163.8), rgb(33, 180, 130).
Aa
Black text reads best on this color (7.91:1).
About this color
#21B482 is a medium-light, moderately saturated green. In OKLCH its lightness is 68%, its chroma 0.139 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Bluey Green (#2BB179), ΔE 0.012 away. Black text reads best on it, at 7.91:1.
| Hue family | Greens |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Bluey Green (#2BB179) |
| Black text | 7.91:1 |
| White text | 2.65:1 |
Values
| HEX | #21B482 |
| RGB | rgb(33, 180, 130) |
| HSL | hsl(160, 69%, 42%) |
| OKLCH | oklch(68.5% 0.139 163.8) |
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 #21B482 | 2.65:1 | Fails | Lc -56.3 | Large or bold text, headings |
| Black text on #21B482 | 7.91:1 | AAA | Lc 52.9 | Large or bold text, headings |
| #21B482 text on white | 2.65:1 | Fails | Lc 51.1 | Large or bold text, headings |
| #21B482 text on black | 7.91:1 | AAA | Lc -50.8 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DCEFE5
oklch(93.5% 0.024 163.1)
-
Step 200
200
#BDE4D1
oklch(88.6% 0.048 164.3)
-
Step 300
300
#8AD3B1
oklch(80.9% 0.088 163.5)
-
Step 400
400 (this color)
#21B482
oklch(68.5% 0.139 163.8)
-
Step 500
500
#00A273
oklch(63.1% 0.134 164)
-
Step 600
600
#008860
oklch(55.5% 0.118 164)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#004F36
oklch(37.9% 0.081 163.8)
-
Step 950
950
#002F1F
oklch(27% 0.057 164.4)
#21B482 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) | #B1A67F | 0.136 |
| Deuteranopia (no green cones) | #9F9A85 | 0.131 |
| Tritanopia (no blue cones) | #00B4A6 | 0.052 |
| Achromatopsia (no color) | #9F9F9F | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21B482
#21B482
oklch(68.5% 0.139 163.8)
- #D474AF
#D474AF
oklch(68.4% 0.139 343.7)
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 #21B482, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bluey Green #2BB179 ΔE 0.012
- Dark Seafoam #1FB57A ΔE 0.012
- Green Teal #0CB577 ΔE 0.018
- Dark Seafoam Green #3EAF76 ΔE 0.019
- Medium Sea Green #3CB371 ΔE 0.022
- Seaweed Green #35AD6B ΔE 0.030
- Jade Green #2BAF6A ΔE 0.030
- Green Blue #01C08D ΔE 0.033
Use #21B482 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.