#57B397
Closest named color: Greeny Blue (#42B395). oklch(70.2% 0.098 171.1), rgb(87, 179, 151).
Aa
Black text reads best on this color (8.30:1).
About this color
#57B397 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 70%, its chroma 0.098 and its hue 171°. Its hue sits on the cool side of the wheel. The nearest named color is Greeny Blue (#42B395), ΔE 0.016 away. Black text reads best on it, at 8.30:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (70%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Greeny Blue (#42B395) |
| Black text | 8.30:1 |
| White text | 2.53:1 |
Values
| HEX | #57B397 |
| RGB | rgb(87, 179, 151) |
| HSL | hsl(162, 38%, 52%) |
| OKLCH | oklch(70.2% 0.098 171.1) |
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 #57B397 | 2.53:1 | Fails | Lc -54.5 | Large or bold text, headings |
| Black text on #57B397 | 8.30:1 | AAA | Lc 54.6 | Large or bold text, headings |
| #57B397 text on white | 2.53:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #57B397 text on black | 8.30:1 | AAA | Lc -52.6 | 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
#F0F7F5
oklch(97% 0.008 177.3)
-
Step 100
100
#DFEEE8
oklch(93.6% 0.018 170.1)
-
Step 200
200
#C4E1D6
oklch(88.5% 0.034 170.7)
-
Step 300
300
#99CEBB
oklch(80.9% 0.061 170.6)
-
Step 400
400 (this color)
#57B397
oklch(70.2% 0.098 171.1)
-
Step 500
500
#00A17F
oklch(63.1% 0.124 170.8)
-
Step 600
600
#00876B
oklch(55.5% 0.108 171.4)
-
Step 700
700
#007259
oklch(49.1% 0.097 170.7)
-
Step 800
800
#005D49
oklch(42.6% 0.083 171.6)
-
Step 900
900
#004E3C
oklch(37.7% 0.074 170.6)
-
Step 950
950
#012E23
oklch(26.9% 0.051 171.7)
#57B397 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) | #AEA996 | 0.100 |
| Deuteranopia (no green cones) | #A09F99 | 0.096 |
| Tritanopia (no blue cones) | #30B4AB | 0.033 |
| Achromatopsia (no color) | #A3A3A3 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57B397
#57B397
oklch(70.2% 0.098 171.1)
- #CE85A7
#CE85A7
oklch(70.2% 0.099 350.5)
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 #57B397, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greeny Blue #42B395 ΔE 0.016
- Tea #65AB7C ΔE 0.036
- Light Sea Green #20B2AA ΔE 0.038
- Topaz #13BBAF ΔE 0.040
- Dusty Green #76A973 ΔE 0.050
- Dark Seafoam Green #3EAF76 ΔE 0.052
- Faded Green #7BB274 ΔE 0.052
- Bluey Green #2BB179 ΔE 0.054
Use #57B397 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.