#172923
Closest named color: Jet (#212529). oklch(26.3% 0.026 171.2), rgb(23, 41, 35).
Aa
White text reads best on this color (15.24:1).
About this color
#172923 is a dark close to neutral grey. In OKLCH its lightness is 26%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.026 away. White text reads best on it, at 15.24:1.
| Hue family | Neutrals |
| Lightness | dark (26%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.37:1 |
| White text | 15.24:1 |
Values
| HEX | #172923 |
| RGB | rgb(23, 41, 35) |
| HSL | hsl(160, 28%, 13%) |
| OKLCH | oklch(26.3% 0.026 171.2) |
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 #172923 | 15.24:1 | AAA | Lc -104.8 | Preferred for body text |
| Black text on #172923 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #172923 text on white | 15.24:1 | AAA | Lc 102.1 | Preferred for body text |
| #172923 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD7
oklch(88.5% 0.018 170)
-
Step 300
300
#ADC8BE
oklch(81% 0.032 171.1)
-
Step 400
400
#81AB9C
oklch(70.6% 0.05 170.9)
-
Step 500
500
#609684
oklch(63% 0.064 171.1)
-
Step 600
600
#45816E
oklch(55.7% 0.07 171)
-
Step 700
700
#366D5C
oklch(49.2% 0.065 171.2)
-
Step 800
800
#2E594B
oklch(42.8% 0.054 170.5)
-
Step 900
900
#29493F
oklch(37.7% 0.042 172)
-
Step 950
950 (this color)
#172923
oklch(26.3% 0.026 171.2)
#172923 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) | #282723 | 0.027 |
| Deuteranopia (no green cones) | #252523 | 0.025 |
| Tritanopia (no blue cones) | #122927 | 0.009 |
| Achromatopsia (no color) | #252525 | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172923
#172923
oklch(26.3% 0.026 171.2)
- #2F1F26
#2F1F26
oklch(26.2% 0.027 351.2)
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 #172923, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.026
- Dark #1B2431 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.051
- Very Dark Green #062E03 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.061
- Dark Forest Green #002D04 ΔE 0.061
- Pakistan Green #283618 ΔE 0.062
- Gunmetal #293241 ΔE 0.066
Use #172923 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.