#213836
Closest named color: Onyx (#343A40). oklch(32.1% 0.029 188.9), rgb(33, 56, 54).
Aa
White text reads best on this color (12.47:1).
About this color
#213836 is a dark close to neutral grey. In OKLCH its lightness is 32%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Onyx (#343A40), ΔE 0.035 away. White text reads best on it, at 12.47:1.
| Hue family | Neutrals |
| Lightness | dark (32%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Onyx (#343A40) |
| Black text | 1.68:1 |
| White text | 12.47:1 |
Values
| HEX | #213836 |
| RGB | rgb(33, 56, 54) |
| HSL | hsl(175, 26%, 17%) |
| OKLCH | oklch(32.1% 0.029 188.9) |
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 #213836 | 12.47:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #213836 | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #213836 text on white | 12.47:1 | AAA | Lc 98.3 | Preferred for body text |
| #213836 text on black | 1.68:1 | 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
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#A8C8C5
oklch(80.8% 0.035 189.5)
-
Step 400
400
#78ACA7
oklch(70.6% 0.055 188.5)
-
Step 500
500
#529792
oklch(63% 0.071 189.4)
-
Step 600
600
#33827C
oklch(55.6% 0.077 188.3)
-
Step 700
700
#246E69
oklch(49.2% 0.072 188.7)
-
Step 800
800
#215955
oklch(42.6% 0.059 188.7)
-
Step 900
900
#214A46
oklch(37.8% 0.047 187)
-
Step 950
950 (this color)
#213836
oklch(32.1% 0.029 188.9)
#213836 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) | #363636 | 0.032 |
| Deuteranopia (no green cones) | #313336 | 0.028 |
| Tritanopia (no blue cones) | #193937 | 0.009 |
| Achromatopsia (no color) | #343434 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #213836
#213836
oklch(32.1% 0.029 188.9)
- #412D30
#412D30
oklch(32.2% 0.03 8.9)
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 #213836, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Onyx #343A40 ΔE 0.035
- Gunmetal #293241 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.040
- Midnight Green #073B4C ΔE 0.040
- Pakistan Green #283618 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.051
- Charcoal Grey #3C4142 ΔE 0.055
- Charcoal #264653 ΔE 0.061
Use #213836 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.