#28C05E
Closest named color: Algae Green (#21C36F). oklch(71% 0.185 149.7), rgb(40, 192, 94).
Aa
Black text reads best on this color (8.79:1).
About this color
#28C05E is a medium-light, vivid green. In OKLCH its lightness is 71%, its chroma 0.185 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Algae Green (#21C36F), ΔE 0.019 away. Black text reads best on it, at 8.79:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.185) |
| Temperature | in between |
| Nearest name | Algae Green (#21C36F) |
| Black text | 8.79:1 |
| White text | 2.38:1 |
Values
| HEX | #28C05E |
| RGB | rgb(40, 192, 94) |
| HSL | hsl(141, 66%, 45%) |
| OKLCH | oklch(71% 0.185 149.7) |
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 #28C05E | 2.38:1 | Fails | Lc -51.5 | Large or bold text, headings |
| Black text on #28C05E | 8.79:1 | AAA | Lc 57.5 | Large or bold text, headings |
| #28C05E text on white | 2.38:1 | Fails | Lc 46.5 | Large or bold text, headings |
| #28C05E text on black | 8.79:1 | AAA | Lc -55.5 | 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
#EFF9F0
oklch(97.2% 0.016 148.4)
-
Step 100
100
#DBF1DE
oklch(93.7% 0.034 149.3)
-
Step 200
200
#BCE6C3
oklch(88.6% 0.065 149.8)
-
Step 300
300
#89D698
oklch(81% 0.116 149.4)
-
Step 400
400 (this color)
#28C05E
oklch(71% 0.185 149.7)
-
Step 500
500
#00A54A
oklch(63.1% 0.175 149.7)
-
Step 600
600
#008B3D
oklch(55.6% 0.154 149.7)
-
Step 700
700
#007532
oklch(49.1% 0.137 149.6)
-
Step 800
800
#006028
oklch(42.7% 0.119 149.7)
-
Step 900
900
#005020
oklch(37.7% 0.105 149.6)
-
Step 950
950
#003010
oklch(27% 0.075 149.4)
#28C05E 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) | #C1AF56 | 0.150 |
| Deuteranopia (no green cones) | #B0A365 | 0.149 |
| Tritanopia (no blue cones) | #00BCA9 | 0.103 |
| Achromatopsia (no color) | #A8A8A8 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28C05E
#28C05E
oklch(71% 0.185 149.7)
- #DF71D8
#DF71D8
oklch(71.1% 0.185 329.7)
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 #28C05E, closest first.
No curated palette has a color within ΔE 0.04 of #28C05E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Algae Green #21C36F ΔE 0.019
- Shamrock Green #02C14D ΔE 0.022
- Dark Mint Green #20C073 ΔE 0.025
- Cool Green #33B864 ΔE 0.026
- Dark Mint #48C072 ΔE 0.031
- Leafy Green #51B73B ΔE 0.035
- Shamrock #01B44C ΔE 0.039
- Seaweed #18D17B ΔE 0.050
Use #28C05E 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.