#374238
Closest named color: Charcoal Grey (#3C4142). oklch(36.6% 0.022 147.6), rgb(55, 66, 56).
Aa
White text reads best on this color (10.50:1).
About this color
#374238 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.022. 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 10.50:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #374238 |
| RGB | rgb(55, 66, 56) |
| HSL | hsl(125, 9%, 24%) |
| OKLCH | oklch(36.6% 0.022 147.6) |
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 #374238 | 10.50:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #374238 | 1.99:1 | Fails | Lc 9.5 | Not readable |
| #374238 text on white | 10.50:1 | AAA | Lc 94.4 | Preferred for body text |
| #374238 text on black | 1.99:1 | Fails | Lc -8.2 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
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
#BAC4BB
oklch(81% 0.017 148.4)
-
Step 400
400
#96A597
oklch(70.6% 0.026 147.2)
-
Step 500
500
#7C8F7E
oklch(63% 0.033 148.1)
-
Step 600
600
#657A67
oklch(55.7% 0.038 147.7)
-
Step 700
700
#546656
oklch(49% 0.033 148.1)
-
Step 800
800
#455346
oklch(42.6% 0.028 147)
-
Step 900
900 (this color)
#374238
oklch(36.6% 0.022 147.6)
-
Step 950
950
#222823
oklch(26.9% 0.013 150.2)
#374238 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) | #424037 | 0.018 |
| Deuteranopia (no green cones) | #403F38 | 0.017 |
| Tritanopia (no blue cones) | #36413F | 0.013 |
| Achromatopsia (no color) | #3F3F3F | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374238
#374238
oklch(36.6% 0.022 147.6)
- #453B45
#453B45
oklch(36.6% 0.022 326)
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 #374238, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.021
- Onyx #343A40 ΔE 0.035
- Charcoal #264653 ΔE 0.046
- Dark Slate Gray #2F4F4F ΔE 0.047
- Dark Teal #014D4E ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.058
- Evergreen #05472A ΔE 0.060
Use #374238 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.