#17252A
Closest named color: Jet (#212529). oklch(25.4% 0.021 222.2), rgb(23, 37, 42).
Aa
White text reads best on this color (15.73:1).
About this color
#17252A is a dark close to neutral grey. In OKLCH its lightness is 25%, its chroma 0.021. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.016 away. White text reads best on it, at 15.73:1.
| Hue family | Neutrals |
| Lightness | dark (25%) |
| Chroma | close to neutral grey (0.021) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.33:1 |
| White text | 15.73:1 |
Values
| HEX | #17252A |
| RGB | rgb(23, 37, 42) |
| HSL | hsl(196, 29%, 13%) |
| OKLCH | oklch(25.4% 0.021 222.2) |
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 #17252A | 15.73:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #17252A | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #17252A text on white | 15.73:1 | AAA | Lc 102.7 | Preferred for body text |
| #17252A 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
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#D0DBE0
oklch(88.5% 0.014 226.6)
-
Step 300
300
#B0C5CC
oklch(81% 0.025 219.8)
-
Step 400
400
#86A7B3
oklch(70.8% 0.04 222)
-
Step 500
500
#6791A0
oklch(63.1% 0.051 222.1)
-
Step 600
600
#4D7B8B
oklch(55.6% 0.056 222.1)
-
Step 700
700
#3E6876
oklch(49.2% 0.052 221.3)
-
Step 800
800
#335460
oklch(42.6% 0.043 223.1)
-
Step 900
900
#2D464F
oklch(37.8% 0.034 222.5)
-
Step 950
950 (this color)
#17252A
oklch(25.4% 0.021 222.2)
#17252A 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) | #22242A | 0.018 |
| Deuteranopia (no green cones) | #1F222A | 0.016 |
| Tritanopia (no blue cones) | #102727 | 0.014 |
| Achromatopsia (no color) | #232323 | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #17252A
#17252A
oklch(25.4% 0.021 222.2)
- #2C1F1B
#2C1F1B
oklch(25.4% 0.022 37.8)
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 #17252A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.016
- Dark #1B2431 ΔE 0.017
- Oxford Blue #1B263B ΔE 0.033
- Rich Black #0D1B2A ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.060
- Gunmetal #293241 ΔE 0.064
- Dark Brown #341C02 ΔE 0.074
- Dark Forest Green #002D04 ΔE 0.081
Use #17252A 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.