#3B595E
Closest named color: Petrol (#005F6A). oklch(44.2% 0.036 209), rgb(59, 89, 94).
Aa
White text reads best on this color (7.56:1).
About this color
#3B595E is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.036 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.040 away. White text reads best on it, at 7.56:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.036) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.77:1 |
| White text | 7.56:1 |
Values
| HEX | #3B595E |
| RGB | rgb(59, 89, 94) |
| HSL | hsl(189, 23%, 30%) |
| OKLCH | oklch(44.2% 0.036 209) |
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 #3B595E | 7.56:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #3B595E | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #3B595E text on white | 7.56:1 | AAA | Lc 86.2 | Fine for body text |
| #3B595E text on black | 2.77:1 | Fails | Lc -15.8 | Dividers and decoration only |
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 800.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B2C5C8
oklch(81% 0.021 208.1)
-
Step 400
400
#89A7AC
oklch(70.7% 0.034 208.8)
-
Step 500
500
#6B9198
oklch(63.1% 0.043 210.1)
-
Step 600
600
#527B82
oklch(55.5% 0.047 209.3)
-
Step 700
700
#42686E
oklch(49.1% 0.044 208.4)
-
Step 800
800 (this color)
#3B595E
oklch(44.2% 0.036 209)
-
Step 900
900
#30464A
oklch(37.8% 0.028 210)
-
Step 950
950
#1C292B
oklch(27% 0.018 207.9)
#3B595E 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) | #54575E | 0.035 |
| Deuteranopia (no green cones) | #4E525E | 0.032 |
| Tritanopia (no blue cones) | #2E5C5A | 0.019 |
| Achromatopsia (no color) | #545454 | 0.036 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B595E
#3B595E
oklch(44.2% 0.036 209)
- #664C48
#664C48
oklch(44.3% 0.036 28.6)
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 #3B595E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.040
- YInMn Blue #415A77 ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.044
- Deep Teal #00555A ΔE 0.048
- Dark Aqua #05696B ΔE 0.054
- Slate #516572 ΔE 0.055
- Dusty Grape #545775 ΔE 0.056
Use #3B595E 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.