#538C72
Closest named color: Slate Green (#658D6D). oklch(59.3% 0.073 163.4), rgb(83, 140, 114).
Aa
Black text reads best on this color (5.36:1).
About this color
#538C72 is a medium-dark, moderately saturated green. In OKLCH its lightness is 59%, its chroma 0.073 and its hue 163°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.021 away. Black text reads best on it, at 5.36:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.073) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #538C72 |
| RGB | rgb(83, 140, 114) |
| HSL | hsl(153, 26%, 44%) |
| OKLCH | oklch(59.3% 0.073 163.4) |
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 #538C72 | 3.91:1 | AA large text | Lc -72.0 | Content text, not long reading |
| Black text on #538C72 | 5.36:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #538C72 text on white | 3.91:1 | AA large text | Lc 66.5 | Content text, not long reading |
| #538C72 text on black | 5.36:1 | AA | Lc -35.2 | 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
#E4ECE8
oklch(93.6% 0.01 164.9)
-
Step 200
200
#CFDDD6
oklch(88.5% 0.018 164.6)
-
Step 300
300
#AEC8BB
oklch(81% 0.033 164)
-
Step 400
400
#83AB98
oklch(70.6% 0.052 164.3)
-
Step 500
500
#63977E
oklch(63.2% 0.067 162.8)
-
Step 600
600 (this color)
#538C72
oklch(59.3% 0.073 163.4)
-
Step 700
700
#396D56
oklch(49.1% 0.068 163.5)
-
Step 800
800
#305946
oklch(42.8% 0.057 162.7)
-
Step 900
900
#2B493B
oklch(37.7% 0.044 163.2)
-
Step 950
950
#1A2B23
oklch(27.1% 0.027 163.6)
#538C72 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) | #8A8571 | 0.071 |
| Deuteranopia (no green cones) | #817E74 | 0.069 |
| Tritanopia (no blue cones) | #448C85 | 0.030 |
| Achromatopsia (no color) | #818181 | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538C72
#538C72
oklch(59.3% 0.073 163.4)
- #9D6D89
#9D6D89
oklch(59.3% 0.072 343.7)
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 #538C72, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.021
- Dusty Teal #4C9085 ΔE 0.027
- Dark Sage #598556 ΔE 0.038
- Ocean Green #3D9973 ΔE 0.041
- Viridian #1E9167 ΔE 0.046
- Green Grey #77926F ΔE 0.048
- Sea #3C9992 ΔE 0.050
- Light Forest Green #4F9153 ΔE 0.051
Use #538C72 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.