#2B303C
Closest named color: Gunmetal (#293241). oklch(30.9% 0.023 267.3), rgb(43, 48, 60).
Aa
White text reads best on this color (13.20:1).
About this color
#2B303C is a dark close to neutral grey. In OKLCH its lightness is 31%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.010 away. White text reads best on it, at 13.20:1.
| Hue family | Neutrals |
| Lightness | dark (31%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.59:1 |
| White text | 13.20:1 |
Values
| HEX | #2B303C |
| RGB | rgb(43, 48, 60) |
| HSL | hsl(222, 17%, 20%) |
| OKLCH | oklch(30.9% 0.023 267.3) |
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 #2B303C | 13.20:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #2B303C | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #2B303C text on white | 13.20:1 | AAA | Lc 99.5 | Preferred for body text |
| #2B303C text on black | 1.59:1 | 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 950.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D5D9E3
oklch(88.5% 0.014 268.5)
-
Step 300
300
#B9C1D3
oklch(81% 0.027 266.6)
-
Step 400
400
#95A0BC
oklch(70.7% 0.043 268.4)
-
Step 500
500
#7B89AC
oklch(63.2% 0.055 267.8)
-
Step 600
600
#647397
oklch(55.7% 0.059 266.9)
-
Step 700
700
#536081
oklch(49.2% 0.056 267.7)
-
Step 800
800
#444E69
oklch(42.6% 0.047 268.6)
-
Step 900
900
#394155
oklch(37.6% 0.036 267.7)
-
Step 950
950 (this color)
#2B303C
oklch(30.9% 0.023 267.3)
#2B303C 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) | #2C313D | 0.004 |
| Deuteranopia (no green cones) | #2B2F3C | 0.003 |
| Tritanopia (no blue cones) | #273234 | 0.019 |
| Achromatopsia (no color) | #303030 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B303C
#2B303C
oklch(30.9% 0.023 267.3)
- #353023
#353023
oklch(31% 0.023 89.5)
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 #2B303C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.010
- Space Cadet #2B2D42 ΔE 0.017
- Onyx #343A40 ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.041
- Oxford Blue #1B263B ΔE 0.045
- Midnight Green #073B4C ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
- Jet #212529 ΔE 0.049
Use #2B303C 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.