#538F71
Closest named color: Slate Green (#658D6D). oklch(60% 0.078 161), rgb(83, 143, 113).
Aa
Black text reads best on this color (5.53:1).
About this color
#538F71 is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.078 and its hue 161°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.019 away. Black text reads best on it, at 5.53:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.53:1 |
| White text | 3.79:1 |
Values
| HEX | #538F71 |
| RGB | rgb(83, 143, 113) |
| HSL | hsl(150, 27%, 44%) |
| OKLCH | oklch(60% 0.078 161) |
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 #538F71 | 3.79:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #538F71 | 5.53:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #538F71 text on white | 3.79:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #538F71 text on black | 5.53:1 | AA | Lc -36.3 | 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 500.
-
Step 50
50
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E4ECE7
oklch(93.6% 0.011 158.8)
-
Step 200
200
#CEDED5
oklch(88.6% 0.021 161.4)
-
Step 300
300
#ACC9B9
oklch(81% 0.038 161.3)
-
Step 400
400
#7FAD94
oklch(70.7% 0.061 160.5)
-
Step 500
500 (this color)
#538F71
oklch(60% 0.078 161)
-
Step 600
600
#408363
oklch(55.7% 0.086 161)
-
Step 700
700
#316F52
oklch(49.2% 0.08 161)
-
Step 800
800
#2A5A43
oklch(42.7% 0.066 161)
-
Step 900
900
#274A39
oklch(37.7% 0.051 161.5)
-
Step 950
950
#172B21
oklch(26.8% 0.032 161.4)
#538F71 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) | #8E876F | 0.076 |
| Deuteranopia (no green cones) | #848073 | 0.073 |
| Tritanopia (no blue cones) | #448F87 | 0.034 |
| Achromatopsia (no color) | #838383 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538F71
#538F71
oklch(60% 0.078 161)
- #A16E8E
#A16E8E
oklch(60.1% 0.078 341.6)
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 #538F71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.019
- Dusty Teal #4C9085 ΔE 0.029
- Ocean Green #3D9973 ΔE 0.032
- Dark Sage #598556 ΔE 0.039
- Viridian #1E9167 ΔE 0.043
- Green Grey #77926F ΔE 0.044
- Light Forest Green #4F9153 ΔE 0.045
- Grey Teal #5E9B8A ΔE 0.047
Use #538F71 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.