#3E535F
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43% 0.033 233.6), rgb(62, 83, 95).
Aa
White text reads best on this color (8.05:1).
About this color
#3E535F is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.033 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.035 away. White text reads best on it, at 8.05:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.60:1 |
| White text | 8.05:1 |
Values
| HEX | #3E535F |
| RGB | rgb(62, 83, 95) |
| HSL | hsl(202, 21%, 31%) |
| OKLCH | oklch(43% 0.033 233.6) |
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 #3E535F | 8.05:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #3E535F | 2.60:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #3E535F text on white | 8.05:1 | AAA | Lc 87.9 | Fine for body text |
| #3E535F text on black | 2.60:1 | Fails | Lc -14.3 | Not readable |
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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D3DADF
oklch(88.4% 0.01 238.5)
-
Step 300
300
#B5C3CB
oklch(80.9% 0.019 232.6)
-
Step 400
400
#8FA4B1
oklch(70.7% 0.03 235.1)
-
Step 500
500
#738E9E
oklch(63.2% 0.039 234.2)
-
Step 600
600
#5B7889
oklch(55.7% 0.043 234.3)
-
Step 700
700
#4A6574
oklch(49.1% 0.04 233)
-
Step 800
800 (this color)
#3E535F
oklch(43% 0.033 233.6)
-
Step 900
900
#34444D
oklch(37.6% 0.026 233)
-
Step 950
950
#1F282D
oklch(27% 0.016 232.4)
#3E535F 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) | #4D5260 | 0.022 |
| Deuteranopia (no green cones) | #494E5F | 0.021 |
| Tritanopia (no blue cones) | #335657 | 0.024 |
| Achromatopsia (no color) | #505050 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3E535F
#3E535F
oklch(43% 0.033 233.6)
- #5E4B3F
#5E4B3F
oklch(42.9% 0.032 53.9)
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 #3E535F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.035
- YInMn Blue #415A77 ΔE 0.041
- Deep Teal #00555A ΔE 0.050
- Dusty Grape #545775 ΔE 0.051
- Petrol #005F6A ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.052
- Charcoal #264653 ΔE 0.056
- Dark Green Blue #1F6357 ΔE 0.063
Use #3E535F 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.