#57B189
Closest named color: Greeny Blue (#42B395). oklch(69.4% 0.106 162.6), rgb(87, 177, 137).
Aa
Black text reads best on this color (8.05:1).
About this color
#57B189 is a medium-light, moderately saturated green. In OKLCH its lightness is 69%, its chroma 0.106 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.019 away. Black text reads best on it, at 8.05:1.
| Hue family | Greens |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.05:1 |
| White text | 2.60:1 |
Values
| HEX | #57B189 |
| RGB | rgb(87, 177, 137) |
| HSL | hsl(153, 37%, 52%) |
| OKLCH | oklch(69.4% 0.106 162.6) |
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 #57B189 | 2.60:1 | Fails | Lc -55.8 | Large or bold text, headings |
| Black text on #57B189 | 8.05:1 | AAA | Lc 53.3 | Large or bold text, headings |
| #57B189 text on white | 2.60:1 | Fails | Lc 50.7 | Large or bold text, headings |
| #57B189 text on black | 8.05:1 | AAA | Lc -51.2 | 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
#F0F7F4
oklch(97% 0.008 168.8)
-
Step 100
100
#DFEEE6
oklch(93.6% 0.019 162.9)
-
Step 200
200
#C4E1D2
oklch(88.4% 0.037 163.1)
-
Step 300
300
#9ACFB4
oklch(81% 0.067 162.3)
-
Step 400
400 (this color)
#57B189
oklch(69.4% 0.106 162.6)
-
Step 500
500
#0AA271
oklch(63.1% 0.135 162.8)
-
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
#005E40
oklch(42.6% 0.092 163.1)
-
Step 900
900
#004F34
oklch(37.8% 0.083 162.1)
-
Step 950
950
#032F1E
oklch(27.1% 0.057 162.1)
#57B189 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) | #AFA687 | 0.104 |
| Deuteranopia (no green cones) | #A19C8B | 0.100 |
| Tritanopia (no blue cones) | #39B1A6 | 0.043 |
| Achromatopsia (no color) | #A0A0A0 | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B189
#57B189
oklch(69.4% 0.106 162.6)
- #CA81AE
#CA81AE
oklch(69.3% 0.107 342.6)
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 #57B189, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.019
- Tea #65AB7C ΔE 0.021
- Dark Seafoam Green #3EAF76 ΔE 0.034
- Dusty Green #76A973 ΔE 0.037
- Bluey Green #2BB179 ΔE 0.039
- Faded Green #7BB274 ΔE 0.041
- Medium Sea Green #3CB371 ΔE 0.043
- Dark Seafoam #1FB57A ΔE 0.043
Use #57B189 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.