#213736
Closest named color: Gunmetal (#293241). oklch(31.8% 0.028 192.2), rgb(33, 55, 54).
Aa
White text reads best on this color (12.61:1).
About this color
#213736 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Gunmetal (#293241), ΔE 0.033 away. White text reads best on it, at 12.61:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Gunmetal (#293241) |
| Black text | 1.66:1 |
| White text | 12.61:1 |
Values
| HEX | #213736 |
| RGB | rgb(33, 55, 54) |
| HSL | hsl(177, 25%, 17%) |
| OKLCH | oklch(31.8% 0.028 192.2) |
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 #213736 | 12.61:1 | AAA | Lc -101.9 | Preferred for body text |
| Black text on #213736 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #213736 text on white | 12.61:1 | AAA | Lc 98.6 | Preferred for body text |
| #213736 text on black | 1.66:1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDC
oklch(88.4% 0.018 192.6)
-
Step 300
300
#A9C8C6
oklch(80.9% 0.033 191.7)
-
Step 400
400
#7AACA9
oklch(70.8% 0.053 191.3)
-
Step 500
500
#559794
oklch(63.2% 0.068 191.8)
-
Step 600
600
#37817E
oklch(55.6% 0.073 191.6)
-
Step 700
700
#286D6B
oklch(49.1% 0.068 192.5)
-
Step 800
800
#235957
oklch(42.7% 0.057 191.9)
-
Step 900
900
#224948
oklch(37.7% 0.044 193.2)
-
Step 950
950 (this color)
#213736
oklch(31.8% 0.028 192.2)
#213736 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) | #353536 | 0.030 |
| Deuteranopia (no green cones) | #303236 | 0.027 |
| Tritanopia (no blue cones) | #193837 | 0.009 |
| Achromatopsia (no color) | #333333 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213736
#213736
oklch(31.8% 0.028 192.2)
- #3F2D2E
#3F2D2E
oklch(31.8% 0.027 15)
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 #213736, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Gunmetal #293241 ΔE 0.033
- Onyx #343A40 ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.040
- Pakistan Green #283618 ΔE 0.048
- Space Cadet #2B2D42 ΔE 0.048
- Charcoal Grey #3C4142 ΔE 0.057
- Jet #212529 ΔE 0.061
Use #213736 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.