#172B2D
Closest named color: Jet (#212529). oklch(27.3% 0.026 203.9), rgb(23, 43, 45).
Aa
White text reads best on this color (14.79:1).
About this color
#172B2D is a dark close to neutral grey. In OKLCH its lightness is 27%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.023 away. White text reads best on it, at 14.79:1.
| Hue family | Neutrals |
| Lightness | dark (27%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.41:1 |
| White text | 14.79:1 |
Values
| HEX | #172B2D |
| RGB | rgb(23, 43, 45) |
| HSL | hsl(185, 32%, 13%) |
| OKLCH | oklch(27.3% 0.026 203.9) |
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 #172B2D | 14.79:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #172B2D | 1.41:1 | Fails | Lc 0.0 | Not readable |
| #172B2D text on white | 14.79:1 | AAA | Lc 101.6 | Preferred for body text |
| #172B2D text on black | 1.41:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#AAC7CA
oklch(80.9% 0.032 204.2)
-
Step 400
400
#7CAAAF
oklch(70.7% 0.05 204.5)
-
Step 500
500
#59959B
oklch(63.1% 0.063 203.9)
-
Step 600
600
#3C7F86
oklch(55.6% 0.069 204.5)
-
Step 700
700
#2D6B71
oklch(49% 0.064 203.9)
-
Step 800
800
#27575C
oklch(42.6% 0.052 204.5)
-
Step 900
900
#25484C
oklch(37.7% 0.041 205.1)
-
Step 950
950 (this color)
#172B2D
oklch(27.3% 0.026 203.9)
#172B2D 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) | #28292D | 0.026 |
| Deuteranopia (no green cones) | #24272D | 0.023 |
| Tritanopia (no blue cones) | #0E2C2C | 0.011 |
| Achromatopsia (no color) | #282828 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172B2D
#172B2D
oklch(27.3% 0.026 203.9)
- #332221
#332221
oklch(27.3% 0.026 22.7)
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 #172B2D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.023
- Dark #1B2431 ΔE 0.029
- Oxford Blue #1B263B ΔE 0.037
- Gunmetal #293241 ΔE 0.050
- Space Cadet #2B2D42 ΔE 0.051
- Rich Black #0D1B2A ΔE 0.061
- Pakistan Green #283618 ΔE 0.065
- Midnight Green #073B4C ΔE 0.067
Use #172B2D 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.