#131C13
Closest named color: Rich Black (#0D1B2A). oklch(21.4% 0.022 144.8), rgb(19, 28, 19).
Aa
White text reads best on this color (17.45:1).
About this color
#131C13 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.047 away. White text reads best on it, at 17.45:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.45:1 |
Values
| HEX | #131C13 |
| RGB | rgb(19, 28, 19) |
| HSL | hsl(120, 19%, 9%) |
| OKLCH | oklch(21.4% 0.022 144.8) |
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 #131C13 | 17.45:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #131C13 | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #131C13 text on white | 17.45:1 | AAA | Lc 104.3 | Preferred for body text |
| #131C13 text on black | 1.20:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DCD3
oklch(88.6% 0.015 142.2)
-
Step 300
300
#B7C5B7
oklch(80.9% 0.025 145.3)
-
Step 400
400
#91A891
oklch(70.7% 0.042 145.1)
-
Step 500
500
#769276
oklch(63% 0.052 144.9)
-
Step 600
600
#5E7D5E
oklch(55.7% 0.059 144.7)
-
Step 700
700
#4E694E
oklch(49.1% 0.053 144.7)
-
Step 800
800
#405640
oklch(42.8% 0.045 144.7)
-
Step 900
900
#364736
oklch(37.8% 0.036 144.8)
-
Step 950
950 (this color)
#131C13
oklch(21.4% 0.022 144.8)
#131C13 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) | #1C1A12 | 0.017 |
| Deuteranopia (no green cones) | #1B1913 | 0.018 |
| Tritanopia (no blue cones) | #121B1A | 0.015 |
| Achromatopsia (no color) | #1A1A1A | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #131C13
#131C13
oklch(21.4% 0.022 144.8)
- #1E161F
#1E161F
oklch(21.4% 0.021 322.6)
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 #131C13, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.047
- Jet #212529 ΔE 0.054
- Rich Navy #001219 ΔE 0.057
- Dark #1B2431 ΔE 0.060
- Almost Black #070D0D ΔE 0.064
- Dark Brown #341C02 ΔE 0.067
- Dark Forest Green #002D04 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.078
Use #131C13 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.