#170D03
Closest named color: Almost Black (#070D0D). oklch(17% 0.028 70), rgb(23, 13, 3).
Aa
White text reads best on this color (19.17:1).
About this color
#170D03 is a very dark close to neutral grey. In OKLCH its lightness is 17%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.039 away. White text reads best on it, at 19.17:1.
| Hue family | Neutrals |
| Lightness | very dark (17%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.09:1 |
| White text | 19.17:1 |
Values
| HEX | #170D03 |
| RGB | rgb(23, 13, 3) |
| HSL | hsl(30, 77%, 5%) |
| OKLCH | oklch(17% 0.028 70) |
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 #170D03 | 19.17:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #170D03 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #170D03 text on white | 19.17:1 | AAA | Lc 105.5 | Preferred for body text |
| #170D03 text on black | 1.09:1 | 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
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E1D7CC
oklch(88.4% 0.019 70.2)
-
Step 300
300
#CFBDAA
oklch(80.8% 0.033 68.8)
-
Step 400
400
#B69B7D
oklch(70.6% 0.053 69.8)
-
Step 500
500
#A4835C
oklch(63.2% 0.068 70.8)
-
Step 600
600
#8F6C42
oklch(55.7% 0.073 70.4)
-
Step 700
700
#7A5A34
oklch(49.2% 0.068 69.9)
-
Step 800
800
#63492B
oklch(42.6% 0.057 69.3)
-
Step 900
900
#513E27
oklch(37.8% 0.045 71.1)
-
Step 950
950 (this color)
#170D03
oklch(17% 0.028 70)
#170D03 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) | #100E02 | 0.017 |
| Deuteranopia (no green cones) | #131003 | 0.014 |
| Tritanopia (no blue cones) | #1A0B0A | 0.021 |
| Achromatopsia (no color) | #0F0F0F | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170D03
#170D03
oklch(17% 0.028 70)
- #06101B
#06101B
oklch(16.9% 0.028 250.6)
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 #170D03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.039
- Very Dark Brown #1D0200 ΔE 0.040
- Rich Navy #001219 ΔE 0.058
- Rich Black #0D1B2A ΔE 0.080
- Dark Brown #341C02 ΔE 0.088
- Dark Maroon #3C0008 ΔE 0.094
- Jet #212529 ΔE 0.100
- Deep Brown #410200 ΔE 0.102
Use #170D03 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.