#588E6B
Closest named color: Slate Green (#658D6D). oklch(59.9% 0.079 154.9), rgb(88, 142, 107).
Aa
Black text reads best on this color (5.49:1).
About this color
#588E6B is a medium-dark, moderately saturated green. In OKLCH its lightness is 60%, its chroma 0.079 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Slate Green (#658D6D), ΔE 0.016 away. Black text reads best on it, at 5.49:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.079) |
| Temperature | in between |
| Nearest name | Slate Green (#658D6D) |
| Black text | 5.49:1 |
| White text | 3.82:1 |
Values
| HEX | #588E6B |
| RGB | rgb(88, 142, 107) |
| HSL | hsl(141, 23%, 45%) |
| OKLCH | oklch(59.9% 0.079 154.9) |
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 #588E6B | 3.82:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #588E6B | 5.49:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #588E6B text on white | 3.82:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #588E6B text on black | 5.49:1 | AA | Lc -36.0 | 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
#CFDED3
oklch(88.6% 0.022 154.1)
-
Step 300
300
#AEC8B6
oklch(80.8% 0.038 155.3)
-
Step 400
400
#82AC90
oklch(70.6% 0.061 155.4)
-
Step 500
500 (this color)
#588E6B
oklch(59.9% 0.079 154.9)
-
Step 600
600
#47825D
oklch(55.6% 0.085 154.9)
-
Step 700
700
#386E4C
oklch(49.1% 0.08 154.5)
-
Step 800
800
#2F5A3F
oklch(42.8% 0.066 154.9)
-
Step 900
900
#2A4A35
oklch(37.8% 0.053 154.3)
-
Step 950
950
#192B1F
oklch(26.9% 0.033 154.5)
#588E6B 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) | #8E8669 | 0.072 |
| Deuteranopia (no green cones) | #85806D | 0.069 |
| Tritanopia (no blue cones) | #4E8D84 | 0.038 |
| Achromatopsia (no color) | #828282 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #588E6B
#588E6B
oklch(59.9% 0.079 154.9)
- #9D6E93
#9D6E93
oklch(59.9% 0.078 334.4)
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 #588E6B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Green #658D6D ΔE 0.016
- Dark Sage #598556 ΔE 0.033
- Ocean Green #3D9973 ΔE 0.035
- Dusty Teal #4C9085 ΔE 0.037
- Light Forest Green #4F9153 ΔE 0.039
- Green Grey #77926F ΔE 0.041
- Viridian #1E9167 ΔE 0.044
- Sea Green #2E8B57 ΔE 0.050
Use #588E6B 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.