#39453B
Closest named color: Charcoal Grey (#3C4142). oklch(37.6% 0.023 150), rgb(57, 69, 59).
Aa
White text reads best on this color (10.05:1).
About this color
#39453B is a dark close to neutral grey. In OKLCH its lightness is 38%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.021 away. White text reads best on it, at 10.05:1.
| Hue family | Neutrals |
| Lightness | dark (38%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.08:1 |
| White text | 10.05:1 |
Values
| HEX | #39453B |
| RGB | rgb(57, 69, 59) |
| HSL | hsl(130, 10%, 25%) |
| OKLCH | oklch(37.6% 0.023 150) |
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 #39453B | 10.05:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #39453B | 2.08:1 | Fails | Lc 10.6 | Not readable |
| #39453B text on white | 10.05:1 | AAA | Lc 93.4 | Preferred for body text |
| #39453B text on black | 2.08:1 | Fails | Lc -9.1 | 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
#B9C4BB
oklch(80.9% 0.017 151)
-
Step 400
400
#95A698
oklch(70.8% 0.028 150.6)
-
Step 500
500
#7B907E
oklch(63.1% 0.036 149.3)
-
Step 600
600
#647A68
oklch(55.6% 0.038 150.3)
-
Step 700
700
#536756
oklch(49.2% 0.036 149.2)
-
Step 800
800
#445447
oklch(42.8% 0.029 150.5)
-
Step 900
900 (this color)
#39453B
oklch(37.6% 0.023 150)
-
Step 950
950
#222923
oklch(27.2% 0.015 149.3)
#39453B 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) | #45433A | 0.019 |
| Deuteranopia (no green cones) | #43413B | 0.020 |
| Tritanopia (no blue cones) | #384442 | 0.013 |
| Achromatopsia (no color) | #424242 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39453B
#39453B
oklch(37.6% 0.023 150)
- #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 #39453B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.021
- Dark Slate Gray #2F4F4F ΔE 0.038
- Onyx #343A40 ΔE 0.042
- Charcoal #264653 ΔE 0.044
- Dark Teal #014D4E ΔE 0.052
- Dark Blue Green #005249 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.056
- Evergreen #05472A ΔE 0.062
Use #39453B 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.