#21C48A
Closest named color: Greenblue (#23C48B). oklch(72.8% 0.152 162.4), rgb(33, 196, 138).
Aa
Black text reads best on this color (9.32:1).
About this color
#21C48A is a medium-light, vivid green. In OKLCH its lightness is 73%, its chroma 0.152 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greenblue (#23C48B), ΔE 0.002 away. Black text reads best on it, at 9.32:1.
| Hue family | Greens |
| Lightness | medium-light (73%) |
| Chroma | vivid (0.152) |
| Temperature | in between |
| Nearest name | Greenblue (#23C48B) |
| Black text | 9.32:1 |
| White text | 2.25:1 |
Values
| HEX | #21C48A |
| RGB | rgb(33, 196, 138) |
| HSL | hsl(159, 71%, 45%) |
| OKLCH | oklch(72.8% 0.152 162.4) |
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 #21C48A | 2.25:1 | Fails | Lc -48.6 | Large or bold text, headings |
| Black text on #21C48A | 9.32:1 | AAA | Lc 60.1 | Content text, not long reading |
| #21C48A text on white | 2.25:1 | Fails | Lc 43.8 | Non-text elements, placeholder text |
| #21C48A text on black | 9.32:1 | AAA | Lc -58.3 | 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
#EEF8F3
oklch(97% 0.012 164.8)
-
Step 100
100
#DAF0E4
oklch(93.6% 0.028 162.1)
-
Step 200
200
#BBE5CF
oklch(88.6% 0.053 162.3)
-
Step 300
300
#86D4AE
oklch(80.9% 0.095 162.1)
-
Step 400
400 (this color)
#21C48A
oklch(72.8% 0.152 162.4)
-
Step 500
500
#00A270
oklch(63% 0.137 162.6)
-
Step 600
600
#00895E
oklch(55.7% 0.121 162.5)
-
Step 700
700
#00734E
oklch(49.1% 0.107 162.4)
-
Step 800
800
#005E3F
oklch(42.6% 0.093 162.3)
-
Step 900
900
#004F34
oklch(37.8% 0.083 162.1)
-
Step 950
950
#002F1E
oklch(27% 0.058 163)
#21C48A 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) | #C1B587 | 0.147 |
| Deuteranopia (no green cones) | #AEA78E | 0.143 |
| Tritanopia (no blue cones) | #00C4B4 | 0.059 |
| Achromatopsia (no color) | #ADADAD | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21C48A
#21C48A
oklch(72.8% 0.152 162.4)
- #E77DC1
#E77DC1
oklch(72.8% 0.153 342.5)
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 #21C48A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greenblue #23C48B ΔE 0.002
- Green Blue #01C08D ΔE 0.015
- Dark Mint Green #20C073 ΔE 0.029
- Dark Mint #48C072 ΔE 0.029
- Algae Green #21C36F ΔE 0.034
- Dark Seafoam #1FB57A ΔE 0.044
- Green Teal #0CB577 ΔE 0.046
- Soft Green #6FC276 ΔE 0.047
Use #21C48A 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.