#28CC83
Closest named color: Seaweed (#18D17B). oklch(74.8% 0.167 157.7), rgb(40, 204, 131).
Aa
Black text reads best on this color (10.05:1).
About this color
#28CC83 is a medium-light, vivid green. In OKLCH its lightness is 75%, its chroma 0.167 and its hue 158°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Seaweed (#18D17B), ΔE 0.020 away. Black text reads best on it, at 10.05:1.
| Hue family | Greens |
| Lightness | medium-light (75%) |
| Chroma | vivid (0.167) |
| Temperature | in between |
| Nearest name | Seaweed (#18D17B) |
| Black text | 10.05:1 |
| White text | 2.08:1 |
Values
| HEX | #28CC83 |
| RGB | rgb(40, 204, 131) |
| HSL | hsl(153, 67%, 48%) |
| OKLCH | oklch(74.8% 0.167 157.7) |
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 #28CC83 | 2.08:1 | Fails | Lc -44.9 | Non-text elements, placeholder text |
| Black text on #28CC83 | 10.05:1 | AAA | Lc 63.6 | Content text, not long reading |
| #28CC83 text on white | 2.08:1 | Fails | Lc 40.3 | Non-text elements, placeholder text |
| #28CC83 text on black | 10.05:1 | AAA | Lc -62.0 | Content text, not long reading |
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
#EEF8F2
oklch(97% 0.013 159.9)
-
Step 100
100
#DAF0E2
oklch(93.5% 0.03 157.9)
-
Step 200
200
#BAE5CB
oklch(88.4% 0.057 158.5)
-
Step 300
300
#84D5A7
oklch(80.8% 0.104 158.1)
-
Step 400
400 (this color)
#28CC83
oklch(74.8% 0.167 157.7)
-
Step 500
500
#00A365
oklch(63% 0.148 157.8)
-
Step 600
600
#008954
oklch(55.5% 0.13 157.7)
-
Step 700
700
#007446
oklch(49.2% 0.116 157.5)
-
Step 800
800
#005F39
oklch(42.8% 0.1 157.9)
-
Step 900
900
#004F2E
oklch(37.6% 0.089 157.5)
-
Step 950
950
#002F1A
oklch(26.9% 0.063 158.2)
#28CC83 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) | #CABB7E | 0.153 |
| Deuteranopia (no green cones) | #B7AE88 | 0.149 |
| Tritanopia (no blue cones) | #00CAB9 | 0.076 |
| Achromatopsia (no color) | #B3B3B3 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28CC83
#28CC83
oklch(74.8% 0.167 157.7)
- #EF80D2
#EF80D2
oklch(74.9% 0.167 337.9)
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 #28CC83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Seaweed #18D17B ΔE 0.020
- Greenblue #23C48B ΔE 0.029
- Algae Green #21C36F ΔE 0.032
- Dark Mint #48C072 ΔE 0.033
- Dark Mint Green #20C073 ΔE 0.036
- Emerald #06D6A0 ΔE 0.039
- Green Blue #01C08D ΔE 0.043
- Soft Green #6FC276 ΔE 0.044
Use #28CC83 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.