#1B291D
Closest named color: Jet (#212529). oklch(26.4% 0.029 148.5), rgb(27, 41, 29).
Aa
White text reads best on this color (15.20:1).
About this color
#1B291D is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.032 away. White text reads best on it, at 15.20:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.38:1 |
| White text | 15.20:1 |
Values
| HEX | #1B291D |
| RGB | rgb(27, 41, 29) |
| HSL | hsl(129, 21%, 13%) |
| OKLCH | oklch(26.4% 0.029 148.5) |
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 #1B291D | 15.20:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #1B291D | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #1B291D text on white | 15.20:1 | AAA | Lc 102.1 | Preferred for body text |
| #1B291D text on black | 1.38:1 | 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE6
oklch(93.6% 0.011 149.9)
-
Step 200
200
#D1DDD2
oklch(88.5% 0.02 147.8)
-
Step 300
300
#B2C7B4
oklch(80.8% 0.035 148)
-
Step 400
400
#89AB8E
oklch(70.8% 0.056 149.1)
-
Step 500
500
#6C9672
oklch(63.2% 0.071 148.5)
-
Step 600
600
#53805A
oklch(55.6% 0.077 148.4)
-
Step 700
700
#436C4A
oklch(49.1% 0.071 148.7)
-
Step 800
800
#37583D
oklch(42.7% 0.059 149.1)
-
Step 900
900
#304934
oklch(37.8% 0.047 148.8)
-
Step 950
950 (this color)
#1B291D
oklch(26.4% 0.029 148.5)
#1B291D 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) | #29271C | 0.023 |
| Deuteranopia (no green cones) | #27251E | 0.024 |
| Tritanopia (no blue cones) | #192826 | 0.018 |
| Achromatopsia (no color) | #262626 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B291D
#1B291D
oklch(26.4% 0.029 148.5)
- #2D202C
#2D202C
oklch(26.4% 0.029 328.9)
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 #1B291D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.032
- Dark #1B2431 ΔE 0.047
- Very Dark Green #062E03 ΔE 0.053
- Dark Forest Green #002D04 ΔE 0.054
- Pakistan Green #283618 ΔE 0.055
- Dark Brown #341C02 ΔE 0.060
- Oxford Blue #1B263B ΔE 0.061
- Rich Black #0D1B2A ΔE 0.069
Use #1B291D 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.