#172829
Closest named color: Jet (#212529). oklch(26.2% 0.023 200.6), rgb(23, 40, 41).
Aa
White text reads best on this color (15.30:1).
About this color
#172829 is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.018 away. White text reads best on it, at 15.30:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.37:1 |
| White text | 15.30:1 |
Values
| HEX | #172829 |
| RGB | rgb(23, 40, 41) |
| HSL | hsl(183, 28%, 13%) |
| OKLCH | oklch(26.2% 0.023 200.6) |
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 #172829 | 15.30:1 | AAA | Lc -104.9 | Preferred for body text |
| Black text on #172829 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #172829 text on white | 15.30:1 | AAA | Lc 102.2 | Preferred for body text |
| #172829 text on black | 1.37:1 | 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
#E4EBEC
oklch(93.5% 0.008 207.1)
-
Step 200
200
#CEDCDD
oklch(88.4% 0.015 202)
-
Step 300
300
#ADC6C7
oklch(80.8% 0.027 199.6)
-
Step 400
400
#82A9AB
oklch(70.7% 0.042 200.2)
-
Step 500
500
#619497
oklch(63.2% 0.055 200.6)
-
Step 600
600
#467E81
oklch(55.6% 0.059 200.1)
-
Step 700
700
#376A6D
oklch(49% 0.055 200.5)
-
Step 800
800
#2E5759
oklch(42.8% 0.046 199.7)
-
Step 900
900
#2A4749
oklch(37.6% 0.035 201.4)
-
Step 950
950 (this color)
#172829
oklch(26.2% 0.023 200.6)
#172829 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 | 0.024 |
| Deuteranopia (no green cones) | #222429 | 0.021 |
| Tritanopia (no blue cones) | #102928 | 0.009 |
| Achromatopsia (no color) | #252525 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172829
#172829
oklch(26.2% 0.023 200.6)
- #2F2020
#2F2020
oklch(26.2% 0.023 18.8)
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 #172829, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.018
- Dark #1B2431 ΔE 0.025
- Oxford Blue #1B263B ΔE 0.038
- Rich Black #0D1B2A ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.059
- Gunmetal #293241 ΔE 0.059
- Pakistan Green #283618 ΔE 0.070
- Dark Brown #341C02 ΔE 0.073
Use #172829 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.