#28B787
Closest named color: Dark Seafoam (#1FB57A). oklch(69.5% 0.137 164.7), rgb(40, 183, 135).
Aa
Black text reads best on this color (8.21:1).
About this color
#28B787 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.137 and its hue 165°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Seafoam (#1FB57A), ΔE 0.018 away. Black text reads best on it, at 8.21:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.137) |
| Temperature | in between |
| Nearest name | Dark Seafoam (#1FB57A) |
| Black text | 8.21:1 |
| White text | 2.55:1 |
Values
| HEX | #28B787 |
| RGB | rgb(40, 183, 135) |
| HSL | hsl(160, 64%, 44%) |
| OKLCH | oklch(69.5% 0.137 164.7) |
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 #28B787 | 2.55:1 | Fails | Lc -54.7 | Large or bold text, headings |
| Black text on #28B787 | 8.21:1 | AAA | Lc 54.4 | Large or bold text, headings |
| #28B787 text on white | 2.55:1 | Fails | Lc 49.6 | Large or bold text, headings |
| #28B787 text on black | 8.21:1 | AAA | Lc -52.4 | 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
#EFF8F3
oklch(97.1% 0.012 162.1)
-
Step 100
100
#DCEFE6
oklch(93.6% 0.023 165.8)
-
Step 200
200
#BDE4D1
oklch(88.6% 0.048 164.3)
-
Step 300
300
#8BD3B3
oklch(81% 0.086 164.7)
-
Step 400
400 (this color)
#28B787
oklch(69.5% 0.137 164.7)
-
Step 500
500
#00A275
oklch(63.1% 0.133 165)
-
Step 600
600
#008861
oklch(55.5% 0.117 164.6)
-
Step 700
700
#007351
oklch(49.2% 0.104 164.3)
-
Step 800
800
#005E42
oklch(42.7% 0.09 164.7)
-
Step 900
900
#004E37
oklch(37.6% 0.079 165.5)
-
Step 950
950
#002F1F
oklch(27% 0.057 164.4)
#28B787 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) | #B3A984 | 0.134 |
| Deuteranopia (no green cones) | #A29D8A | 0.130 |
| Tritanopia (no blue cones) | #00B7AA | 0.050 |
| Achromatopsia (no color) | #A2A2A2 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #28B787
#28B787
oklch(69.5% 0.137 164.7)
- #D878B1
#D878B1
oklch(69.6% 0.137 344.7)
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 #28B787, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Seafoam #1FB57A ΔE 0.018
- Bluey Green #2BB179 ΔE 0.022
- Green Teal #0CB577 ΔE 0.024
- Green Blue #01C08D ΔE 0.025
- Dark Seafoam Green #3EAF76 ΔE 0.026
- Medium Sea Green #3CB371 ΔE 0.027
- Greeny Blue #42B395 ΔE 0.030
- Greenblue #23C48B ΔE 0.037
Use #28B787 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.