#538B75
Closest named color: Dusty Teal (#4C9085). oklch(59.1% 0.069 167), rgb(83, 139, 117).
Aa
Black text reads best on this color (5.31:1).
About this color
#538B75 is a medium-dark, muted green. In OKLCH its lightness is 59%, its chroma 0.069 and its hue 167°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dusty Teal (#4C9085), ΔE 0.023 away. Black text reads best on it, at 5.31:1.
| Hue family | Greens |
| Lightness | medium-dark (59%) |
| Chroma | muted (0.069) |
| Temperature | in between |
| Nearest name | Dusty Teal (#4C9085) |
| Black text | 5.31:1 |
| White text | 3.94:1 |
Values
| HEX | #538B75 |
| RGB | rgb(83, 139, 117) |
| HSL | hsl(156, 25%, 44%) |
| OKLCH | oklch(59.1% 0.069 167) |
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 #538B75 | 3.94:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #538B75 | 5.31:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #538B75 text on white | 3.94:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #538B75 text on black | 5.31:1 | AA | Lc -34.9 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E5ECE8
oklch(93.7% 0.009 161.3)
-
Step 200
200
#CFDDD7
oklch(88.5% 0.017 168.4)
-
Step 300
300
#AFC7BC
oklch(80.8% 0.03 166.3)
-
Step 400
400
#83AB9A
oklch(70.7% 0.05 167)
-
Step 500
500
#639681
oklch(63.1% 0.063 166.6)
-
Step 600
600 (this color)
#538B75
oklch(59.1% 0.069 167)
-
Step 700
700
#396C59
oklch(49% 0.064 167.5)
-
Step 800
800
#305849
oklch(42.6% 0.052 167.7)
-
Step 900
900
#2B493D
oklch(37.8% 0.042 166.9)
-
Step 950
950
#1A2B24
oklch(27.1% 0.026 166.8)
#538B75 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) | #898474 | 0.070 |
| Deuteranopia (no green cones) | #7F7D76 | 0.067 |
| Tritanopia (no blue cones) | #448B85 | 0.026 |
| Achromatopsia (no color) | #808080 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #538B75
#538B75
oklch(59.1% 0.069 167)
- #9C6D86
#9C6D86
oklch(59.1% 0.069 346.2)
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 #538B75, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Teal #4C9085 ΔE 0.023
- Slate Green #658D6D ΔE 0.024
- Dark Sage #598556 ΔE 0.041
- Ocean Green #3D9973 ΔE 0.045
- Sea #3C9992 ΔE 0.049
- Viridian #1E9167 ΔE 0.050
- Green Grey #77926F ΔE 0.050
- Dark Cyan #008B8B ΔE 0.051
Use #538B75 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.