#21302E
Closest named color: Gunmetal (#293241). oklch(29.5% 0.02 185.9), rgb(33, 48, 46).
Aa
White text reads best on this color (13.75:1).
About this color
#21302E is a dark close to neutral grey. In OKLCH its lightness is 30%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.037 away. White text reads best on it, at 13.75:1.
| Hue family | Neutrals |
| Lightness | dark (30%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.52:1 |
| White text | 13.75:1 |
Values
| HEX | #21302E |
| RGB | rgb(33, 48, 46) |
| HSL | hsl(172, 19%, 16%) |
| OKLCH | oklch(29.5% 0.02 185.9) |
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 #21302E | 13.75:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #21302E | 1.52:1 | Fails | Lc 0.0 | Not readable |
| #21302E text on white | 13.75:1 | AAA | Lc 100.3 | Preferred for body text |
| #21302E text on black | 1.52:1 | 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEA
oklch(93.5% 0.007 185.3)
-
Step 200
200
#D0DCDA
oklch(88.5% 0.013 185.1)
-
Step 300
300
#B0C6C3
oklch(80.9% 0.024 186.8)
-
Step 400
400
#86A9A4
oklch(70.7% 0.039 185.6)
-
Step 500
500
#67948E
oklch(63.2% 0.05 185.7)
-
Step 600
600
#4D7E78
oklch(55.6% 0.054 185.9)
-
Step 700
700
#3E6A65
oklch(49.1% 0.05 186.5)
-
Step 800
800
#345752
oklch(42.8% 0.042 184.4)
-
Step 900
900
#2D4744
oklch(37.6% 0.032 186.8)
-
Step 950
950 (this color)
#21302E
oklch(29.5% 0.02 185.9)
#21302E 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) | #2E2E2E | 0.021 |
| Deuteranopia (no green cones) | #2C2C2E | 0.021 |
| Tritanopia (no blue cones) | #1C312F | 0.007 |
| Achromatopsia (no color) | #2D2D2D | 0.020 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21302E
#21302E
oklch(29.5% 0.02 185.9)
- #36282B
#36282B
oklch(29.4% 0.022 4.2)
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 #21302E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.037
- Jet #212529 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.045
- Dark #1B2431 ΔE 0.047
- Pakistan Green #283618 ΔE 0.048
- Oxford Blue #1B263B ΔE 0.050
- Onyx #343A40 ΔE 0.053
- Midnight Green #073B4C ΔE 0.056
Use #21302E 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.