#37413E
Closest named color: Charcoal Grey (#3C4142). oklch(36.5% 0.014 175.5), rgb(55, 65, 62).
Aa
White text reads best on this color (10.56:1).
About this color
#37413E is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.011 away. White text reads best on it, at 10.56:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.98:1 |
| White text | 10.56:1 |
Values
| HEX | #37413E |
| RGB | rgb(55, 65, 62) |
| HSL | hsl(162, 8%, 24%) |
| OKLCH | oklch(36.5% 0.014 175.5) |
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 #37413E | 10.56:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #37413E | 1.98:1 | Fails | Lc 9.4 | Not readable |
| #37413E text on white | 10.56:1 | AAA | Lc 94.5 | Preferred for body text |
| #37413E text on black | 1.98:1 | Fails | Lc -8.1 | 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
#E8EAEA
oklch(93.6% 0.002 197.1)
-
Step 200
200
#D5DAD9
oklch(88.4% 0.006 183)
-
Step 300
300
#BAC3C0
oklch(80.9% 0.011 174.2)
-
Step 400
400
#96A4A0
oklch(70.6% 0.017 176.9)
-
Step 500
500
#7C8E89
oklch(63.1% 0.022 177)
-
Step 600
600
#657873
oklch(55.6% 0.024 177.7)
-
Step 700
700
#546560
oklch(49.1% 0.022 175.7)
-
Step 800
800
#45524E
oklch(42.6% 0.018 174.9)
-
Step 900
900 (this color)
#37413E
oklch(36.5% 0.014 175.5)
-
Step 950
950
#222826
oklch(27% 0.009 173.5)
#37413E 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) | #40403E | 0.014 |
| Deuteranopia (no green cones) | #3E3E3E | 0.014 |
| Tritanopia (no blue cones) | #354140 | 0.004 |
| Achromatopsia (no color) | #3F3F3F | 0.014 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #37413E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.011
- Onyx #343A40 ΔE 0.026
- Charcoal #264653 ΔE 0.038
- Dark Slate Gray #2F4F4F ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
- Dark Teal #014D4E ΔE 0.054
- Gunmetal #293241 ΔE 0.059
Use #37413E 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.