#374850
Closest named color: Charcoal (#264653). oklch(39% 0.025 228.3), rgb(55, 72, 80).
Aa
White text reads best on this color (9.52:1).
About this color
#374850 is a dark close to neutral grey. In OKLCH its lightness is 39%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Charcoal (#264653), ΔE 0.024 away. White text reads best on it, at 9.52:1.
| Hue family | Neutrals |
| Lightness | dark (39%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Charcoal (#264653) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #374850 |
| RGB | rgb(55, 72, 80) |
| HSL | hsl(199, 19%, 26%) |
| OKLCH | oklch(39% 0.025 228.3) |
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 #374850 | 9.52:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #374850 | 2.20:1 | Fails | Lc 11.9 | Not readable |
| #374850 text on white | 9.52:1 | AAA | Lc 92.0 | Preferred for body text |
| #374850 text on black | 2.20:1 | Fails | Lc -10.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EBED
oklch(93.7% 0.006 223.5)
-
Step 200
200
#D2DBDF
oklch(88.6% 0.011 226)
-
Step 300
300
#B5C3CA
oklch(80.9% 0.018 229.1)
-
Step 400
400
#8EA5B0
oklch(70.8% 0.03 228.3)
-
Step 500
500
#718F9C
oklch(63.2% 0.039 226.2)
-
Step 600
600
#597987
oklch(55.7% 0.043 226.7)
-
Step 700
700
#496573
oklch(49% 0.04 230.2)
-
Step 800
800
#3C535D
oklch(42.7% 0.033 226.6)
-
Step 900
900 (this color)
#374850
oklch(39% 0.025 228.3)
-
Step 950
950
#1E282D
oklch(27% 0.017 229.8)
#374850 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) | #444750 | 0.019 |
| Deuteranopia (no green cones) | #404450 | 0.018 |
| Tritanopia (no blue cones) | #2F4A4A | 0.018 |
| Achromatopsia (no color) | #454545 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #374850
#374850
oklch(39% 0.025 228.3)
- #514139
#514139
oklch(39% 0.026 48)
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 #374850, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.024
- Dark Slate Gray #2F4F4F ΔE 0.025
- Charcoal Grey #3C4142 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.028
- Dark Teal #014D4E ΔE 0.046
- Onyx #343A40 ΔE 0.047
- Deep Teal #00555A ΔE 0.052
- Dark Blue Green #005249 ΔE 0.056
Use #374850 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.