#2D4138
Closest named color: Charcoal Grey (#3C4142). oklch(35.5% 0.03 165.2), rgb(45, 65, 56).
Aa
White text reads best on this color (10.91:1).
About this color
#2D4138 is a dark close to neutral grey. In OKLCH its lightness is 36%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Charcoal Grey (#3C4142), ΔE 0.030 away. White text reads best on it, at 10.91:1.
| Hue family | Neutrals |
| Lightness | dark (36%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Charcoal Grey (#3C4142) |
| Black text | 1.92:1 |
| White text | 10.91:1 |
Values
| HEX | #2D4138 |
| RGB | rgb(45, 65, 56) |
| HSL | hsl(153, 18%, 22%) |
| OKLCH | oklch(35.5% 0.03 165.2) |
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 #2D4138 | 10.91:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #2D4138 | 1.92:1 | Fails | Lc 8.7 | Not readable |
| #2D4138 text on white | 10.91:1 | AAA | Lc 95.2 | Preferred for body text |
| #2D4138 text on black | 1.92:1 | Fails | Lc -7.4 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBE9
oklch(93.6% 0.006 170.4)
-
Step 200
200
#D2DCD7
oklch(88.5% 0.013 164.8)
-
Step 300
300
#B4C5BD
oklch(80.8% 0.022 166)
-
Step 400
400
#8DA89B
oklch(70.7% 0.035 164.7)
-
Step 500
500
#709383
oklch(63.2% 0.046 165.2)
-
Step 600
600
#577D6C
oklch(55.6% 0.05 165.1)
-
Step 700
700
#47695A
oklch(49% 0.046 165.3)
-
Step 800
800
#3B564A
oklch(42.8% 0.038 165.3)
-
Step 900
900 (this color)
#2D4138
oklch(35.5% 0.03 165.2)
-
Step 950
950
#1E2924
oklch(26.9% 0.018 165.6)
#2D4138 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) | #403E38 | 0.030 |
| Deuteranopia (no green cones) | #3D3C39 | 0.029 |
| Tritanopia (no blue cones) | #29413E | 0.011 |
| Achromatopsia (no color) | #3D3D3D | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D4138
#2D4138
oklch(35.5% 0.03 165.2)
- #48363F
#48363F
oklch(35.6% 0.029 347.2)
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 #2D4138, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal Grey #3C4142 ΔE 0.030
- Onyx #343A40 ΔE 0.033
- Charcoal #264653 ΔE 0.044
- Dark Teal #014D4E ΔE 0.049
- Dark Blue Grey #1F3B4D ΔE 0.050
- Evergreen #05472A ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.052
- Pakistan Green #283618 ΔE 0.055
Use #2D4138 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.