#3C525E
Closest named color: Dark Slate Gray (#2F4F4F). oklch(42.5% 0.034 232.4), rgb(60, 82, 94).
Aa
White text reads best on this color (8.20:1).
About this color
#3C525E is a dark, muted blue. In OKLCH its lightness is 43%, its chroma 0.034 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.032 away. White text reads best on it, at 8.20:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | muted (0.034) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.56:1 |
| White text | 8.20:1 |
Values
| HEX | #3C525E |
| RGB | rgb(60, 82, 94) |
| HSL | hsl(201, 22%, 30%) |
| OKLCH | oklch(42.5% 0.034 232.4) |
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 #3C525E | 8.20:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #3C525E | 2.56:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #3C525E text on white | 8.20:1 | AAA | Lc 88.3 | Fine for body text |
| #3C525E text on black | 2.56:1 | Fails | Lc -13.8 | 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
#D2DADF
oklch(88.4% 0.011 234.8)
-
Step 300
300
#B5C3CB
oklch(80.9% 0.019 232.6)
-
Step 400
400
#8EA4B1
oklch(70.6% 0.031 233.8)
-
Step 500
500
#728E9E
oklch(63.1% 0.04 233.3)
-
Step 600
600
#5A7889
oklch(55.6% 0.043 233.4)
-
Step 700
700
#496574
oklch(49.1% 0.041 232)
-
Step 800
800 (this color)
#3C525E
oklch(42.5% 0.034 232.4)
-
Step 900
900
#34444D
oklch(37.6% 0.026 233)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#3C525E 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) | #4C515F | 0.023 |
| Deuteranopia (no green cones) | #474D5E | 0.021 |
| Tritanopia (no blue cones) | #315556 | 0.024 |
| Achromatopsia (no color) | #4F4F4F | 0.034 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3C525E
#3C525E
oklch(42.5% 0.034 232.4)
- #5E4A3E
#5E4A3E
oklch(42.7% 0.033 52.5)
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 #3C525E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.032
- YInMn Blue #415A77 ΔE 0.044
- Deep Teal #00555A ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- Charcoal #264653 ΔE 0.051
- Petrol #005F6A ΔE 0.051
- Dusty Grape #545775 ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.061
Use #3C525E 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.