#3F635D
Closest named color: Dark Green Blue (#1F6357). oklch(47% 0.043 182.8), rgb(63, 99, 93).
Aa
White text reads best on this color (6.65:1).
About this color
#3F635D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.043 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.032 away. White text reads best on it, at 6.65:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.15:1 |
| White text | 6.65:1 |
Values
| HEX | #3F635D |
| RGB | rgb(63, 99, 93) |
| HSL | hsl(170, 22%, 32%) |
| OKLCH | oklch(47% 0.043 182.8) |
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 #3F635D | 6.65:1 | AA | Lc -87.9 | Fine for body text |
| Black text on #3F635D | 3.15:1 | AA large text | Lc 21.2 | Dividers and decoration only |
| #3F635D text on white | 6.65:1 | AA | Lc 82.8 | Fine for body text |
| #3F635D text on black | 3.15:1 | AA large text | Lc -19.1 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DCDA
oklch(88.6% 0.012 184)
-
Step 300
300
#B3C5C2
oklch(80.9% 0.02 184.8)
-
Step 400
400
#8BA8A2
oklch(70.8% 0.033 181.4)
-
Step 500
500
#6D928C
oklch(63.1% 0.042 183.9)
-
Step 600
600
#557C76
oklch(55.5% 0.045 184.1)
-
Step 700
700 (this color)
#3F635D
oklch(47% 0.043 182.8)
-
Step 800
800
#395651
oklch(42.9% 0.036 182.6)
-
Step 900
900
#314743
oklch(37.8% 0.028 182.2)
-
Step 950
950
#1D2927
oklch(26.9% 0.017 183.7)
#3F635D 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) | #605F5D | 0.046 |
| Deuteranopia (no green cones) | #595A5E | 0.043 |
| Tritanopia (no blue cones) | #336461 | 0.013 |
| Achromatopsia (no color) | #5C5C5C | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3F635D
#3F635D
oklch(47% 0.043 182.8)
- #705159
#705159
oklch(47% 0.043 1.8)
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 #3F635D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.032
- Dark Aqua #05696B ΔE 0.039
- Slate #516572 ΔE 0.043
- Petrol #005F6A ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.055
- Deep Turquoise #017374 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.059
- Dim Gray #696969 ΔE 0.066
Use #3F635D 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.