#21C047
Closest named color: Shamrock Green (#02C14D). oklch(70.6% 0.205 146.2), rgb(33, 192, 71).
Aa
Black text reads best on this color (8.69:1).
About this color
#21C047 is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.205 and its hue 146°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Shamrock Green (#02C14D), ΔE 0.006 away. Black text reads best on it, at 8.69:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.205) |
| Temperature | in between |
| Nearest name | Shamrock Green (#02C14D) |
| Black text | 8.69:1 |
| White text | 2.41:1 |
Values
| HEX | #21C047 |
| RGB | rgb(33, 192, 71) |
| HSL | hsl(134, 71%, 44%) |
| OKLCH | oklch(70.6% 0.205 146.2) |
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 #21C047 | 2.41:1 | Fails | Lc -51.9 | Large or bold text, headings |
| Black text on #21C047 | 8.69:1 | AAA | Lc 57.1 | Large or bold text, headings |
| #21C047 text on white | 2.41:1 | Fails | Lc 46.9 | Large or bold text, headings |
| #21C047 text on black | 8.69:1 | 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
#EEF9EF
oklch(97.1% 0.018 148.1)
-
Step 100
100
#DBF1DC
oklch(93.6% 0.036 146.5)
-
Step 200
200
#BCE6BE
oklch(88.4% 0.07 146.2)
-
Step 300
300
#88D78E
oklch(81% 0.128 146)
-
Step 400
400 (this color)
#21C047
oklch(70.6% 0.205 146.2)
-
Step 500
500
#00A636
oklch(63.1% 0.192 146.2)
-
Step 600
600
#008C2C
oklch(55.7% 0.169 146.1)
-
Step 700
700
#007624
oklch(49.2% 0.15 146.2)
-
Step 800
800
#00601C
oklch(42.6% 0.129 146.3)
-
Step 900
900
#005116
oklch(37.9% 0.115 146.2)
-
Step 950
950
#00300A
oklch(26.9% 0.081 146.4)
#21C047 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) | #C3AE39 | 0.156 |
| Deuteranopia (no green cones) | #B2A252 | 0.156 |
| Tritanopia (no blue cones) | #00BBA6 | 0.124 |
| Achromatopsia (no color) | #A7A7A7 | 0.206 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21C047
#21C047
oklch(70.6% 0.205 146.2)
- #DF6AE3
#DF6AE3
oklch(70.7% 0.205 326.2)
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 #21C047, closest first.
No curated palette has a color within ΔE 0.04 of #21C047.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Shamrock Green #02C14D ΔE 0.006
- Leafy Green #51B73B ΔE 0.030
- Frog Green #58BC08 ΔE 0.035
- Shamrock #01B44C ΔE 0.038
- Algae Green #21C36F ΔE 0.041
- Cool Green #33B864 ΔE 0.044
- Lime Green #32CD32 ΔE 0.045
- Dark Mint Green #20C073 ΔE 0.048
Use #21C047 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.