#39453C
Closest named color: Charcoal Grey (#3C4142). oklch(37.7% 0.022 152.9), rgb(57, 69, 60).
Aa
White text reads best on this color (10.04:1).
About this color
#39453C is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.020 away. White text reads best on it, at 10.04:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.09:1 |
| White text | 10.04:1 |
Values
| HEX | #39453C |
| RGB | rgb(57, 69, 60) |
| HSL | hsl(135, 10%, 25%) |
| OKLCH | oklch(37.7% 0.022 152.9) |
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 #39453C | 10.04:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #39453C | 2.09:1 | Fails | Lc 10.6 | Not readable |
| #39453C text on white | 10.04:1 | AAA | Lc 93.3 | Preferred for body text |
| #39453C text on black | 2.09:1 | Fails | Lc -9.2 | 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 900.
-
Step 50
50
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E8EBE8
oklch(93.7% 0.005 145.5)
-
Step 200
200
#D5DBD6
oklch(88.5% 0.009 150.7)
-
Step 300
300
#B9C4BC
oklch(80.9% 0.016 154.4)
-
Step 400
400
#95A699
oklch(70.8% 0.027 152.7)
-
Step 500
500
#7B9080
oklch(63.2% 0.034 152.5)
-
Step 600
600
#647A69
oklch(55.7% 0.037 151.9)
-
Step 700
700
#536758
oklch(49.3% 0.034 152.6)
-
Step 800
800
#445448
oklch(42.8% 0.028 152.7)
-
Step 900
900 (this color)
#39453C
oklch(37.7% 0.022 152.9)
-
Step 950
950
#222823
oklch(26.9% 0.013 150.2)
#39453C 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) | #45433C | 0.020 |
| Deuteranopia (no green cones) | #43413C | 0.020 |
| Tritanopia (no blue cones) | #374542 | 0.010 |
| Achromatopsia (no color) | #424242 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39453C
#39453C
oklch(37.7% 0.022 152.9)
- #493D47
#493D47
oklch(37.6% 0.023 331.6)
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 #39453C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.020
- Dark Slate Gray #2F4F4F ΔE 0.037
- Onyx #343A40 ΔE 0.041
- Charcoal #264653 ΔE 0.043
- Dark Teal #014D4E ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.054
- Dark Blue Green #005249 ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.063
Use #39453C 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.