#3F595E
Closest named color: YInMn Blue (#415A77). oklch(44.5% 0.032 210.8), rgb(63, 89, 94).
Aa
White text reads best on this color (7.49:1).
About this color
#3F595E is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.032 and its hue 211°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.042 away. White text reads best on it, at 7.49:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #3F595E |
| RGB | rgb(63, 89, 94) |
| HSL | hsl(190, 20%, 31%) |
| OKLCH | oklch(44.5% 0.032 210.8) |
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 #3F595E | 7.49:1 | AAA | Lc -90.8 | Preferred for body text |
| Black text on #3F595E | 2.80:1 | Fails | Lc 18.0 | Dividers and decoration only |
| #3F595E text on white | 7.49:1 | AAA | Lc 86.0 | Fine for body text |
| #3F595E text on black | 2.80:1 | Fails | Lc -16.0 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E6EBEC
oklch(93.7% 0.006 211)
-
Step 200
200
#D2DBDD
oklch(88.5% 0.01 212.5)
-
Step 300
300
#B3C4C7
oklch(80.8% 0.019 209.4)
-
Step 400
400
#8CA6AB
oklch(70.7% 0.03 210.6)
-
Step 500
500
#6F9097
oklch(63.1% 0.038 212.1)
-
Step 600
600
#567A81
oklch(55.5% 0.042 211)
-
Step 700
700
#46676D
oklch(49.1% 0.039 210.1)
-
Step 800
800 (this color)
#3F595E
oklch(44.5% 0.032 210.8)
-
Step 900
900
#324549
oklch(37.6% 0.025 212)
-
Step 950
950
#1E292B
oklch(27.1% 0.016 209.9)
#3F595E 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) | #55575E | 0.031 |
| Deuteranopia (no green cones) | #4F535E | 0.028 |
| Tritanopia (no blue cones) | #345B5A | 0.017 |
| Achromatopsia (no color) | #555555 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F595E
#3F595E
oklch(44.5% 0.032 210.8)
- #654E49
#654E49
oklch(44.6% 0.032 32.4)
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 #3F595E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.043
- Petrol #005F6A ΔE 0.044
- Dark Green Blue #1F6357 ΔE 0.047
- Slate #516572 ΔE 0.052
- Dusty Grape #545775 ΔE 0.052
- Deep Teal #00555A ΔE 0.052
- Dark Aqua #05696B ΔE 0.056
Use #3F595E 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.