#1F130F
Closest named color: Rich Black (#0D1B2A). oklch(20.1% 0.022 39.2), rgb(31, 19, 15).
Aa
White text reads best on this color (18.12:1).
About this color
#1F130F is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.057 away. White text reads best on it, at 18.12:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.15:1 |
| White text | 18.12:1 |
Values
| HEX | #1F130F |
| RGB | rgb(31, 19, 15) |
| HSL | hsl(15, 35%, 9%) |
| OKLCH | oklch(20.1% 0.022 39.2) |
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 #1F130F | 18.12:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #1F130F | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #1F130F text on white | 18.12:1 | AAA | Lc 104.8 | Preferred for body text |
| #1F130F text on black | 1.15:1 | 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
#F8F5F4
oklch(97.2% 0.003 39.5)
-
Step 100
100
#EFE8E6
oklch(93.6% 0.008 36.6)
-
Step 200
200
#E2D6D2
oklch(88.5% 0.014 39.4)
-
Step 300
300
#D0BBB5
oklch(80.8% 0.026 36.5)
-
Step 400
400
#B8988E
oklch(70.6% 0.041 38.1)
-
Step 500
500
#A67F72
oklch(63.1% 0.052 39.2)
-
Step 600
600
#91685B
oklch(55.6% 0.057 38.3)
-
Step 700
700
#7B574A
oklch(49.2% 0.052 40.7)
-
Step 800
800
#64473D
oklch(42.7% 0.043 39.8)
-
Step 900
900
#523C34
oklch(37.8% 0.034 40.9)
-
Step 950
950 (this color)
#1F130F
oklch(20.1% 0.022 39.2)
#1F130F 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) | #16140F | 0.019 |
| Deuteranopia (no green cones) | #19170F | 0.019 |
| Tritanopia (no blue cones) | #221112 | 0.012 |
| Achromatopsia (no color) | #161616 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1F130F
#1F130F
oklch(20.1% 0.022 39.2)
- #0A191D
#0A191D
oklch(20.2% 0.022 216.9)
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 #1F130F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.057
- Almost Black #070D0D ΔE 0.058
- Very Dark Brown #1D0200 ΔE 0.060
- Rich Navy #001219 ΔE 0.062
- Dark Brown #341C02 ΔE 0.063
- Jet #212529 ΔE 0.068
- Dark #1B2431 ΔE 0.073
- Dark Maroon #3C0008 ΔE 0.074
Use #1F130F 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.