#21BF67
Closest named color: Algae Green (#21C36F). oklch(70.8% 0.177 152.2), rgb(33, 191, 103).
Aa
Black text reads best on this color (8.71:1).
About this color
#21BF67 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.177 and its hue 152°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.013 away. Black text reads best on it, at 8.71:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.177) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 8.71:1 |
| White text | 2.41:1 |
Values
| HEX | #21BF67 |
| RGB | rgb(33, 191, 103) |
| HSL | hsl(147, 71%, 44%) |
| OKLCH | oklch(70.8% 0.177 152.2) |
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 #21BF67 | 2.41:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #21BF67 | 8.71:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #21BF67 text on white | 2.41:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #21BF67 text on black | 8.71:1 | AAA | Lc -55.1 | 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
#EFF9F1
oklch(97.2% 0.015 151.8)
-
Step 100
100
#DBF0E0
oklch(93.5% 0.031 152.9)
-
Step 200
200
#BCE5C6
oklch(88.4% 0.06 152.4)
-
Step 300
300
#88D59E
oklch(80.8% 0.109 152.4)
-
Step 400
400 (this color)
#21BF67
oklch(70.8% 0.177 152.2)
-
Step 500
500
#00A454
oklch(63% 0.165 152.2)
-
Step 600
600
#008A46
oklch(55.5% 0.145 152.3)
-
Step 700
700
#00743A
oklch(49% 0.128 152.4)
-
Step 800
800
#00602E
oklch(42.8% 0.113 152)
-
Step 900
900
#005026
oklch(37.8% 0.099 152.3)
-
Step 950
950
#003014
oklch(27.1% 0.071 152.1)
#21BF67 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) | #BFAE60 | 0.150 |
| Deuteranopia (no green cones) | #AEA26D | 0.148 |
| Tritanopia (no blue cones) | #00BCAA | 0.094 |
| Achromatopsia (no color) | #A7A7A7 | 0.178 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21BF67
#21BF67
oklch(70.8% 0.177 152.2)
- #DF72D1
#DF72D1
oklch(70.9% 0.177 332.3)
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 #21BF67, closest first.
No curated palette has a color within ΔE 0.04 of #21BF67.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.013
- Dark Mint Green #20C073 ΔE 0.014
- Cool Green #33B864 ΔE 0.019
- Dark Mint #48C072 ΔE 0.025
- Shamrock Green #02C14D ΔE 0.032
- Shamrock #01B44C ΔE 0.040
- Green Teal #0CB577 ΔE 0.041
- Medium Sea Green #3CB371 ΔE 0.042
Use #21BF67 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.