#2F4541
Closest named color: Charcoal Grey (#3C4142). oklch(37.1% 0.028 182.2), rgb(47, 69, 65).
Aa
White text reads best on this color (10.25:1).
About this color
#2F4541 is a dark close to neutral grey. In OKLCH its lightness is 37%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.023 away. White text reads best on it, at 10.25:1.
| Hue family | Neutrals |
| Lightness | dark (37%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 2.04:1 |
| White text | 10.25:1 |
Values
| HEX | #2F4541 |
| RGB | rgb(47, 69, 65) |
| HSL | hsl(169, 19%, 23%) |
| OKLCH | oklch(37.1% 0.028 182.2) |
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 #2F4541 | 10.25:1 | AAA | Lc -97.8 | Preferred for body text |
| Black text on #2F4541 | 2.04:1 | Fails | Lc 10.1 | Not readable |
| #2F4541 text on white | 10.25:1 | AAA | Lc 93.8 | Preferred for body text |
| #2F4541 text on black | 2.04:1 | Fails | Lc -8.8 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D1DCDA
oklch(88.6% 0.012 184)
-
Step 300
300
#B2C5C1
oklch(80.8% 0.021 181.7)
-
Step 400
400
#8AA8A2
oklch(70.7% 0.034 181.8)
-
Step 500
500
#6C928B
oklch(63% 0.043 182.3)
-
Step 600
600
#547D75
oklch(55.7% 0.047 180.9)
-
Step 700
700
#446963
oklch(49.1% 0.043 183.2)
-
Step 800
800
#385650
oklch(42.8% 0.037 180.5)
-
Step 900
900 (this color)
#2F4541
oklch(37.1% 0.028 182.2)
-
Step 950
950
#1D2927
oklch(26.9% 0.017 183.7)
#2F4541 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) | #434241 | 0.031 |
| Deuteranopia (no green cones) | #3F4041 | 0.028 |
| Tritanopia (no blue cones) | #284644 | 0.009 |
| Achromatopsia (no color) | #414141 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F4541
#2F4541
oklch(37.1% 0.028 182.2)
- #4D3A3F
#4D3A3F
oklch(37.1% 0.028 1.1)
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 #2F4541, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.023
- Charcoal #264653 ΔE 0.031
- Dark Slate Gray #2F4F4F ΔE 0.034
- Onyx #343A40 ΔE 0.036
- Dark Teal #014D4E ΔE 0.039
- Dark Grey Blue #29465B ΔE 0.044
- Dark Blue Green #005249 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.050
Use #2F4541 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.