#21130A
Closest named color: Dark Brown (#341C02). oklch(20.3% 0.029 53.2), rgb(33, 19, 10).
Aa
White text reads best on this color (18.06:1).
About this color
#21130A is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Dark Brown (#341C02), ΔE 0.057 away. White text reads best on it, at 18.06:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.16:1 |
| White text | 18.06:1 |
Values
| HEX | #21130A |
| RGB | rgb(33, 19, 10) |
| HSL | hsl(23, 53%, 8%) |
| OKLCH | oklch(20.3% 0.029 53.2) |
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 #21130A | 18.06:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #21130A | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #21130A text on white | 18.06:1 | AAA | Lc 104.7 | Preferred for body text |
| #21130A text on black | 1.16:1 | 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
#F8F5F3
oklch(97.2% 0.004 56.4)
-
Step 100
100
#EFE8E4
oklch(93.5% 0.009 52.1)
-
Step 200
200
#E4D6CE
oklch(88.5% 0.019 51.9)
-
Step 300
300
#D3BBAD
oklch(80.9% 0.034 52.2)
-
Step 400
400
#BC9881
oklch(70.7% 0.054 54.2)
-
Step 500
500
#AB7E62
oklch(63.1% 0.069 53)
-
Step 600
600
#966749
oklch(55.6% 0.075 53.2)
-
Step 700
700
#80553A
oklch(49% 0.07 52.5)
-
Step 800
800
#684630
oklch(42.7% 0.058 53.5)
-
Step 900
900
#553B2B
oklch(37.8% 0.045 52.5)
-
Step 950
950 (this color)
#21130A
oklch(20.3% 0.029 53.2)
#21130A 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) | #171409 | 0.022 |
| Deuteranopia (no green cones) | #1A170A | 0.020 |
| Tritanopia (no blue cones) | #241011 | 0.020 |
| Achromatopsia (no color) | #161616 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21130A
#21130A
oklch(20.3% 0.029 53.2)
- #081922
#081922
oklch(20.4% 0.029 233.6)
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 #21130A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.057
- Very Dark Brown #1D0200 ΔE 0.059
- Almost Black #070D0D ΔE 0.063
- Rich Black #0D1B2A ΔE 0.065
- Rich Navy #001219 ΔE 0.069
- Jet #212529 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.072
- Deep Brown #410200 ΔE 0.077
Use #21130A 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.