#17252C
Closest named color: Dark (#1B2431). oklch(25.5% 0.023 230.5), rgb(23, 37, 44).
Aa
White text reads best on this color (15.70:1).
About this color
#17252C is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Dark (#1B2431), ΔE 0.013 away. White text reads best on it, at 15.70:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Dark (#1B2431) |
| Black text | 1.33:1 |
| White text | 15.70:1 |
Values
| HEX | #17252C |
| RGB | rgb(23, 37, 44) |
| HSL | hsl(200, 31%, 13%) |
| OKLCH | oklch(25.5% 0.023 230.5) |
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 #17252C | 15.70:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #17252C | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #17252C text on white | 15.70:1 | AAA | Lc 102.6 | Preferred for body text |
| #17252C text on black | 1.33:1 | 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
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC4CF
oklch(80.8% 0.028 230.4)
-
Step 400
400
#85A6B7
oklch(70.6% 0.044 230.5)
-
Step 500
500
#6690A5
oklch(63% 0.056 230.4)
-
Step 600
600
#4C7A91
oklch(55.6% 0.062 231.1)
-
Step 700
700
#3D677B
oklch(49.1% 0.057 230)
-
Step 800
800
#335464
oklch(42.7% 0.047 230.3)
-
Step 900
900
#2D4552
oklch(37.6% 0.037 232.7)
-
Step 950
950 (this color)
#17252C
oklch(25.5% 0.023 230.5)
#17252C 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) | #22242C | 0.018 |
| Deuteranopia (no green cones) | #1E222C | 0.014 |
| Tritanopia (no blue cones) | #0F2727 | 0.017 |
| Achromatopsia (no color) | #232323 | 0.023 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17252C
#17252C
oklch(25.5% 0.023 230.5)
- #2C2019
#2C2019
oklch(25.6% 0.023 51.6)
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 #17252C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark #1B2431 ΔE 0.013
- Jet #212529 ΔE 0.016
- Oxford Blue #1B263B ΔE 0.029
- Rich Black #0D1B2A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.058
- Gunmetal #293241 ΔE 0.062
- Dark Brown #341C02 ΔE 0.077
- Midnight Green #073B4C ΔE 0.082
Use #17252C 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.