#131927
Closest named color: Rich Black (#0D1B2A). oklch(21.5% 0.029 266.2), rgb(19, 25, 39).
Aa
White text reads best on this color (17.55:1).
About this color
#131927 is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.011 away. White text reads best on it, at 17.55:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.19:1 |
| White text | 17.55:1 |
Values
| HEX | #131927 |
| RGB | rgb(19, 25, 39) |
| HSL | hsl(222, 34%, 11%) |
| OKLCH | oklch(21.5% 0.029 266.2) |
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 #131927 | 17.55:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #131927 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #131927 text on white | 17.55:1 | AAA | Lc 104.4 | Preferred for body text |
| #131927 text on black | 1.19:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D8
oklch(81% 0.035 265.2)
-
Step 400
400
#90A0C4
oklch(70.6% 0.056 266.2)
-
Step 500
500
#7589B5
oklch(63.1% 0.071 265.5)
-
Step 600
600
#5E72A1
oklch(55.6% 0.077 266.2)
-
Step 700
700
#4E608A
oklch(49.2% 0.071 266.1)
-
Step 800
800
#404E70
oklch(42.7% 0.06 266.7)
-
Step 900
900
#36415A
oklch(37.7% 0.045 265.9)
-
Step 950
950 (this color)
#131927
oklch(21.5% 0.029 266.2)
#131927 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) | #141A28 | 0.004 |
| Deuteranopia (no green cones) | #121827 | 0.004 |
| Tritanopia (no blue cones) | #0C1C1E | 0.026 |
| Achromatopsia (no color) | #191919 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #131927
#131927
oklch(21.5% 0.029 266.2)
- #1F1809
#1F1809
oklch(21.3% 0.028 85)
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 #131927, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.011
- Dark #1B2431 ΔE 0.044
- Rich Navy #001219 ΔE 0.051
- Jet #212529 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.056
- Almost Black #070D0D ΔE 0.068
- Navy Blue #001146 ΔE 0.073
- Midnight Purple #280137 ΔE 0.084
Use #131927 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.