#2B383A
Closest named color: Onyx (#343A40). oklch(33% 0.018 207.8), rgb(43, 56, 58).
Aa
White text reads best on this color (12.14:1).
About this color
#2B383A is a dark close to neutral grey. In OKLCH its lightness is 33%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.019 away. White text reads best on it, at 12.14:1.
| Hue family | Neutrals |
| Lightness | dark (33%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #2B383A |
| RGB | rgb(43, 56, 58) |
| HSL | hsl(188, 15%, 20%) |
| OKLCH | oklch(33% 0.018 207.8) |
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 #2B383A | 12.14:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #2B383A | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #2B383A text on white | 12.14:1 | AAA | Lc 97.7 | Preferred for body text |
| #2B383A text on black | 1.72:1 | Fails | Lc 0.0 | 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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADB
oklch(88.4% 0.007 208.8)
-
Step 300
300
#B7C3C5
oklch(80.9% 0.014 208.8)
-
Step 400
400
#92A5A7
oklch(70.8% 0.022 204.4)
-
Step 500
500
#778E92
oklch(63% 0.027 209.3)
-
Step 600
600
#60787C
oklch(55.5% 0.029 208.8)
-
Step 700
700
#4F6569
oklch(49% 0.027 209.9)
-
Step 800
800
#415355
oklch(42.8% 0.023 204.7)
-
Step 900
900 (this color)
#2B383A
oklch(33% 0.018 207.8)
-
Step 950
950
#202829
oklch(27% 0.011 205.8)
#2B383A 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) | #36373A | 0.017 |
| Deuteranopia (no green cones) | #33353A | 0.015 |
| Tritanopia (no blue cones) | #263939 | 0.008 |
| Achromatopsia (no color) | #363636 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B383A
#2B383A
oklch(33% 0.018 207.8)
- #3E3230
#3E3230
oklch(33% 0.018 29.1)
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 #2B383A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.019
- Gunmetal #293241 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.034
- Midnight Green #073B4C ΔE 0.042
- Charcoal Grey #3C4142 ΔE 0.043
- Space Cadet #2B2D42 ΔE 0.044
- Charcoal #264653 ΔE 0.053
- Pakistan Green #283618 ΔE 0.055
Use #2B383A 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.