#21232C
Closest named color: Jet (#212529). oklch(25.8% 0.017 275.3), rgb(33, 35, 44).
Aa
White text reads best on this color (15.65:1).
About this color
#21232C is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.011 away. White text reads best on it, at 15.65:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.34:1 |
| White text | 15.65:1 |
Values
| HEX | #21232C |
| RGB | rgb(33, 35, 44) |
| HSL | hsl(229, 14%, 15%) |
| OKLCH | oklch(25.8% 0.017 275.3) |
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 #21232C | 15.65:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #21232C | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #21232C text on white | 15.65:1 | AAA | Lc 102.6 | Preferred for body text |
| #21232C text on black | 1.34:1 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D7D9E1
oklch(88.6% 0.011 274.9)
-
Step 300
300
#BCC0CE
oklch(80.9% 0.02 273.2)
-
Step 400
400
#9A9FB5
oklch(70.6% 0.033 275.4)
-
Step 500
500
#8288A3
oklch(63.1% 0.041 275.3)
-
Step 600
600
#6B728E
oklch(55.7% 0.044 273.9)
-
Step 700
700
#5A5F79
oklch(49.1% 0.042 276.2)
-
Step 800
800
#494E62
oklch(42.7% 0.034 273.9)
-
Step 900
900
#3D4150
oklch(37.8% 0.026 273.4)
-
Step 950
950 (this color)
#21232C
oklch(25.8% 0.017 275.3)
#21232C 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) | #21242C | 0.004 |
| Deuteranopia (no green cones) | #20232C | 0.002 |
| Tritanopia (no blue cones) | #1E2526 | 0.016 |
| Achromatopsia (no color) | #232323 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21232C
#21232C
oklch(25.8% 0.017 275.3)
- #26241A
#26241A
oklch(25.9% 0.018 98)
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 #21232C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.011
- Dark #1B2431 ΔE 0.013
- Oxford Blue #1B263B ΔE 0.028
- Rich Black #0D1B2A ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.051
- Gunmetal #293241 ΔE 0.059
- Dark Brown #341C02 ΔE 0.070
- Chocolate Brown #411900 ΔE 0.086
Use #21232C 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.