#17282D
Closest named color: Jet (#212529). oklch(26.4% 0.024 218.3), rgb(23, 40, 45).
Aa
White text reads best on this color (15.24:1).
About this color
#17282D is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.017 away. White text reads best on it, at 15.24:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.37:1 |
| White text | 15.24:1 |
Values
| HEX | #17282D |
| RGB | rgb(23, 40, 45) |
| HSL | hsl(194, 32%, 13%) |
| OKLCH | oklch(26.4% 0.024 218.3) |
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 #17282D | 15.24:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #17282D | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #17282D text on white | 15.24:1 | AAA | Lc 102.1 | Preferred for body text |
| #17282D 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E4EBEE
oklch(93.6% 0.009 225.1)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ADC6CD
oklch(81% 0.029 216.5)
-
Step 400
400
#80A8B4
oklch(70.7% 0.047 218.2)
-
Step 500
500
#5F92A2
oklch(63% 0.059 219.7)
-
Step 600
600
#447D8D
oklch(55.7% 0.065 218.1)
-
Step 700
700
#356977
oklch(49.1% 0.06 217.5)
-
Step 800
800
#2D5661
oklch(42.8% 0.049 217.2)
-
Step 900
900
#29474F
oklch(37.8% 0.038 216.7)
-
Step 950
950 (this color)
#17282D
oklch(26.4% 0.024 218.3)
#17282D 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) | #25272D | 0.022 |
| Deuteranopia (no green cones) | #21242D | 0.020 |
| Tritanopia (no blue cones) | #0E2A2A | 0.015 |
| Achromatopsia (no color) | #252525 | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17282D
#17282D
oklch(26.4% 0.024 218.3)
- #30211C
#30211C
oklch(26.4% 0.025 39.2)
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 #17282D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.017
- Dark #1B2431 ΔE 0.019
- Oxford Blue #1B263B ΔE 0.031
- Rich Black #0D1B2A ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.053
- Gunmetal #293241 ΔE 0.055
- Midnight Green #073B4C ΔE 0.074
- Pakistan Green #283618 ΔE 0.075
Use #17282D 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.