#12131E
Closest named color: Rich Black (#0D1B2A). oklch(19.1% 0.022 280), rgb(18, 19, 30).
Aa
White text reads best on this color (18.45:1).
About this color
#12131E is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.033 away. White text reads best on it, at 18.45:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.13:1 |
| White text | 18.45:1 |
Values
| HEX | #12131E |
| RGB | rgb(18, 19, 30) |
| HSL | hsl(235, 25%, 9%) |
| OKLCH | oklch(19.1% 0.022 280) |
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 #12131E | 18.45:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #12131E | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #12131E text on white | 18.45:1 | AAA | Lc 105.1 | Preferred for body text |
| #12131E text on black | 1.13:1 | 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
#F5F5F8
oklch(97.1% 0.004 286.3)
-
Step 100
100
#E9E9EF
oklch(93.6% 0.008 286.2)
-
Step 200
200
#D7D8E3
oklch(88.5% 0.015 281.9)
-
Step 300
300
#BDBFD2
oklch(80.9% 0.027 281)
-
Step 400
400
#9B9EBB
oklch(70.7% 0.042 280.6)
-
Step 500
500
#8386AA
oklch(63.1% 0.054 281)
-
Step 600
600
#6C7096
oklch(55.6% 0.059 279.6)
-
Step 700
700
#5A5D80
oklch(49% 0.056 280.3)
-
Step 800
800
#4A4C68
oklch(42.6% 0.046 281.1)
-
Step 900
900
#3E4054
oklch(37.8% 0.034 280.2)
-
Step 950
950 (this color)
#12131E
oklch(19.1% 0.022 280)
#12131E 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) | #10141E | 0.005 |
| Deuteranopia (no green cones) | #0F131E | 0.006 |
| Tritanopia (no blue cones) | #0F1517 | 0.019 |
| Achromatopsia (no color) | #141414 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12131E
#12131E
oklch(19.1% 0.022 280)
- #161408
#161408
oklch(19% 0.023 100.1)
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 #12131E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.033
- Rich Navy #001219 ΔE 0.035
- Almost Black #070D0D ΔE 0.045
- Dark #1B2431 ΔE 0.068
- Jet #212529 ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.077
- Dark Navy #000435 ΔE 0.081
- Oxford Blue #1B263B ΔE 0.081
Use #12131E 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.