#06171B
Closest named color: Rich Navy (#001219). oklch(19.2% 0.025 214.7), rgb(6, 23, 27).
Aa
White text reads best on this color (18.32:1).
About this color
#06171B is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.024 away. White text reads best on it, at 18.32:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.32:1 |
Values
| HEX | #06171B |
| RGB | rgb(6, 23, 27) |
| HSL | hsl(191, 64%, 6%) |
| OKLCH | oklch(19.2% 0.025 214.7) |
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 #06171B | 18.32:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #06171B | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #06171B text on white | 18.32:1 | AAA | Lc 104.9 | Preferred for body text |
| #06171B text on black | 1.14:1 | 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
#E4EBED
oklch(93.5% 0.008 216.6)
-
Step 200
200
#CEDCE0
oklch(88.5% 0.016 216.7)
-
Step 300
300
#ACC6CC
oklch(80.9% 0.029 213.2)
-
Step 400
400
#80A9B3
oklch(70.8% 0.047 214.4)
-
Step 500
500
#5E93A0
oklch(63.1% 0.059 215)
-
Step 600
600
#437D8B
oklch(55.6% 0.064 215.3)
-
Step 700
700
#346A76
oklch(49.2% 0.06 214.1)
-
Step 800
800
#2C5660
oklch(42.7% 0.05 215)
-
Step 900
900
#28474E
oklch(37.7% 0.039 213.7)
-
Step 950
950 (this color)
#06171B
oklch(19.2% 0.025 214.7)
#06171B 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) | #14161B | 0.022 |
| Deuteranopia (no green cones) | #11141B | 0.019 |
| Tritanopia (no blue cones) | #001918 | 0.014 |
| Achromatopsia (no color) | #151515 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06171B
#06171B
oklch(19.2% 0.025 214.7)
- #1E100D
#1E100D
oklch(19.2% 0.025 32.7)
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 #06171B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.024
- Rich Black #0D1B2A ΔE 0.034
- Almost Black #070D0D ΔE 0.042
- Dark #1B2431 ΔE 0.069
- Jet #212529 ΔE 0.072
- Oxford Blue #1B263B ΔE 0.084
- Dark Navy #000435 ΔE 0.088
- Very Dark Brown #1D0200 ΔE 0.088
Use #06171B 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.