#57B686
Closest named color: Greeny Blue (#42B395). oklch(70.5% 0.116 159.3), rgb(87, 182, 134).
Aa
Black text reads best on this color (8.44:1).
About this color
#57B686 is a medium-light, moderately saturated green. In OKLCH its lightness is 71%, its chroma 0.116 and its hue 159°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.028 away. Black text reads best on it, at 8.44:1.
| Hue family | Greens |
| Lightness | medium-light (71%) |
| Chroma | moderately saturated (0.116) |
| Temperature | in between |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.44:1 |
| White text | 2.48:1 |
Values
| HEX | #57B686 |
| RGB | rgb(87, 182, 134) |
| HSL | hsl(150, 39%, 53%) |
| OKLCH | oklch(70.5% 0.116 159.3) |
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 #57B686 | 2.48:1 | Fails | Lc -53.7 | Large or bold text, headings |
| Black text on #57B686 | 8.44:1 | AAA | Lc 55.4 | Large or bold text, headings |
| #57B686 text on white | 2.48:1 | Fails | Lc 48.7 | Large or bold text, headings |
| #57B686 text on black | 8.44:1 | AAA | Lc -53.3 | 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
#F0F8F3
oklch(97.2% 0.011 158.8)
-
Step 100
100
#DFEEE5
oklch(93.5% 0.02 159.7)
-
Step 200
200
#C4E2D0
oklch(88.6% 0.04 159.2)
-
Step 300
300
#98CFB0
oklch(80.8% 0.072 159.6)
-
Step 400
400 (this color)
#57B686
oklch(70.5% 0.116 159.3)
-
Step 500
500
#00A369
oklch(63.1% 0.144 159.3)
-
Step 600
600
#008958
oklch(55.6% 0.127 159.5)
-
Step 700
700
#007349
oklch(49% 0.112 159.4)
-
Step 800
800
#005F3B
oklch(42.8% 0.098 159.1)
-
Step 900
900
#004F31
oklch(37.7% 0.086 159.7)
-
Step 950
950
#012F1B
oklch(26.9% 0.061 159)
#57B686 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) | #B4AA83 | 0.109 |
| Deuteranopia (no green cones) | #A6A089 | 0.106 |
| Tritanopia (no blue cones) | #39B5A9 | 0.052 |
| Achromatopsia (no color) | #A4A4A4 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B686
#57B686
oklch(70.5% 0.116 159.3)
- #CF83B8
#CF83B8
oklch(70.5% 0.115 338.8)
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 #57B686, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.028
- Tea #65AB7C ΔE 0.030
- Dark Seafoam Green #3EAF76 ΔE 0.035
- Faded Green #7BB274 ΔE 0.036
- Medium Sea Green #3CB371 ΔE 0.037
- Dark Seafoam #1FB57A ΔE 0.038
- Bluey Green #2BB179 ΔE 0.038
- Green Blue #01C08D ΔE 0.038
Use #57B686 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.