#041B1B
Closest named color: Rich Black (#0D1B2A). oklch(20.4% 0.029 195.1), rgb(4, 27, 27).
Aa
White text reads best on this color (17.83:1).
About this color
#041B1B is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.034 away. White text reads best on it, at 17.83:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.83:1 |
Values
| HEX | #041B1B |
| RGB | rgb(4, 27, 27) |
| HSL | hsl(180, 74%, 6%) |
| OKLCH | oklch(20.4% 0.029 195.1) |
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 #041B1B | 17.83:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #041B1B | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #041B1B text on white | 17.83:1 | AAA | Lc 104.5 | Preferred for body text |
| #041B1B text on black | 1.17:1 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C7
oklch(80.8% 0.035 194.2)
-
Step 400
400
#77ACAB
oklch(70.7% 0.056 194.5)
-
Step 500
500
#509797
oklch(63% 0.072 195.5)
-
Step 600
600
#308181
oklch(55.5% 0.077 195.2)
-
Step 700
700
#216D6D
oklch(49% 0.072 195.1)
-
Step 800
800
#1E5959
oklch(42.6% 0.06 195.1)
-
Step 900
900
#204949
oklch(37.6% 0.046 195.4)
-
Step 950
950 (this color)
#041B1B
oklch(20.4% 0.029 195.1)
#041B1B 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) | #19191B | 0.032 |
| Deuteranopia (no green cones) | #15161B | 0.030 |
| Tritanopia (no blue cones) | #001C1B | 0.006 |
| Achromatopsia (no color) | #181818 | 0.030 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041B1B
#041B1B
oklch(20.4% 0.029 195.1)
- #231112
#231112
oklch(20.4% 0.03 16.5)
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 #041B1B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.034
- Rich Navy #001219 ΔE 0.038
- Almost Black #070D0D ΔE 0.055
- Dark #1B2431 ΔE 0.062
- Jet #212529 ΔE 0.063
- Oxford Blue #1B263B ΔE 0.077
- Dark Forest Green #002D04 ΔE 0.087
- Very Dark Green #062E03 ΔE 0.091
Use #041B1B 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.