#1B281B
Closest named color: Jet (#212529). oklch(26% 0.03 144.7), rgb(27, 40, 27).
Aa
White text reads best on this color (15.37:1).
About this color
#1B281B is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.030. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.033 away. White text reads best on it, at 15.37:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.030) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.36:1 |
| White text | 15.37:1 |
Values
| HEX | #1B281B |
| RGB | rgb(27, 40, 27) |
| HSL | hsl(120, 19%, 13%) |
| OKLCH | oklch(26% 0.03 144.7) |
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 #1B281B | 15.37:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #1B281B | 1.36:1 | Fails | Lc 0.0 | Not readable |
| #1B281B text on white | 15.37:1 | AAA | Lc 102.3 | Preferred for body text |
| #1B281B text on black | 1.36:1 | 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
#F3F6F3
oklch(97% 0.005 145.5)
-
Step 100
100
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DDD1
oklch(88.6% 0.02 143)
-
Step 300
300
#B3C7B3
oklch(80.9% 0.035 145.2)
-
Step 400
400
#8BAA8B
oklch(70.6% 0.056 145)
-
Step 500
500
#6E956E
oklch(63% 0.072 144.7)
-
Step 600
600
#568056
oklch(55.7% 0.079 144.4)
-
Step 700
700
#466C46
oklch(49.2% 0.074 144.4)
-
Step 800
800
#3A583A
oklch(42.8% 0.06 144.4)
-
Step 900
900
#324832
oklch(37.6% 0.046 144.6)
-
Step 950
950 (this color)
#1B281B
oklch(26% 0.03 144.7)
#1B281B 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) | #29261A | 0.024 |
| Deuteranopia (no green cones) | #26241C | 0.023 |
| Tritanopia (no blue cones) | #1A2724 | 0.018 |
| Achromatopsia (no color) | #252525 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B281B
#1B281B
oklch(26% 0.03 144.7)
- #2C1F2C
#2C1F2C
oklch(26.1% 0.03 326.4)
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 #1B281B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.033
- Dark #1B2431 ΔE 0.048
- Very Dark Green #062E03 ΔE 0.053
- Dark Forest Green #002D04 ΔE 0.053
- Pakistan Green #283618 ΔE 0.057
- Dark Brown #341C02 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.063
- Rich Black #0D1B2A ΔE 0.068
Use #1B281B 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.