#538B70
Closest named color: Slate Green (#658D6D). oklch(59% 0.073 162.1), rgb(83, 139, 112).
Aa
Black text reads best on this color (5.29:1).
About this color
#538B70 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.073 and its hue 162°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.022 away. Black text reads best on it, at 5.29:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.29:1 |
| White text | 3.96:1 |
Values
| HEX | #538B70 |
| RGB | rgb(83, 139, 112) |
| HSL | hsl(151, 25%, 44%) |
| OKLCH | oklch(59% 0.073 162.1) |
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 #538B70 | 3.96:1 | AA large text | Lc -72.4 | Content text, not long reading |
| Black text on #538B70 | 5.29:1 | AA | Lc 37.2 | Non-text elements, placeholder text |
| #538B70 text on white | 3.96:1 | AA large text | Lc 66.9 | Content text, not long reading |
| #538B70 text on black | 5.29:1 | AA | Lc -34.7 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#CFDDD5
oklch(88.5% 0.019 161.1)
-
Step 300
300
#AFC8BA
oklch(81% 0.033 161.1)
-
Step 400
400
#84AB97
oklch(70.7% 0.051 162.4)
-
Step 500
500
#63967D
oklch(63% 0.067 162.4)
-
Step 600
600 (this color)
#538B70
oklch(59% 0.073 162.1)
-
Step 700
700
#3A6D55
oklch(49.2% 0.068 162.1)
-
Step 800
800
#305946
oklch(42.8% 0.057 162.7)
-
Step 900
900
#2B493A
oklch(37.7% 0.045 161.5)
-
Step 950
950
#1A2B22
oklch(27.1% 0.028 160.6)
#538B70 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) | #89846F | 0.070 |
| Deuteranopia (no green cones) | #807D72 | 0.068 |
| Tritanopia (no blue cones) | #458B83 | 0.030 |
| Achromatopsia (no color) | #808080 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538B70
#538B70
oklch(59% 0.073 162.1)
- #9C6C89
#9C6C89
oklch(59% 0.073 342.6)
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 #538B70, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.022
- Dusty Teal #4C9085 ΔE 0.029
- Dark Sage #598556 ΔE 0.034
- Ocean Green #3D9973 ΔE 0.042
- Viridian #1E9167 ΔE 0.045
- Green Grey #77926F ΔE 0.050
- Light Forest Green #4F9153 ΔE 0.050
- Sea Green #2E8B57 ΔE 0.052
Use #538B70 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.