#1B2829
Closest named color: Jet (#212529). oklch(26.5% 0.018 202.1), rgb(27, 40, 41).
Aa
White text reads best on this color (15.19:1).
About this color
#1B2829 is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.014 away. White text reads best on it, at 15.19:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.38:1 |
| White text | 15.19:1 |
Values
| HEX | #1B2829 |
| RGB | rgb(27, 40, 41) |
| HSL | hsl(184, 21%, 13%) |
| OKLCH | oklch(26.5% 0.018 202.1) |
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 #1B2829 | 15.19:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #1B2829 | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #1B2829 text on white | 15.19:1 | AAA | Lc 102.1 | Preferred for body text |
| #1B2829 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEB
oklch(93.6% 0.006 197)
-
Step 200
200
#D1DCDC
oklch(88.6% 0.012 196.9)
-
Step 300
300
#B2C5C6
oklch(80.9% 0.021 200.6)
-
Step 400
400
#89A7AA
oklch(70.7% 0.033 203.9)
-
Step 500
500
#6A9295
oklch(63.2% 0.044 201.9)
-
Step 600
600
#517C7F
oklch(55.6% 0.048 201.4)
-
Step 700
700
#42686B
oklch(49% 0.043 202.2)
-
Step 800
800
#375557
oklch(42.7% 0.036 201.2)
-
Step 900
900
#304648
oklch(37.7% 0.028 203.1)
-
Step 950
950 (this color)
#1B2829
oklch(26.5% 0.018 202.1)
#1B2829 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) | #262729 | 0.018 |
| Deuteranopia (no green cones) | #242529 | 0.017 |
| Tritanopia (no blue cones) | #162928 | 0.008 |
| Achromatopsia (no color) | #262626 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1B2829
#1B2829
oklch(26.5% 0.018 202.1)
- #2E2221
#2E2221
oklch(26.6% 0.019 23.9)
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 #1B2829, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.014
- Dark #1B2431 ΔE 0.024
- Oxford Blue #1B263B ΔE 0.037
- Rich Black #0D1B2A ΔE 0.055
- Space Cadet #2B2D42 ΔE 0.055
- Gunmetal #293241 ΔE 0.056
- Pakistan Green #283618 ΔE 0.069
- Dark Brown #341C02 ΔE 0.069
Use #1B2829 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.