#011B1D
Closest named color: Rich Black (#0D1B2A). oklch(20.3% 0.033 201.8), rgb(1, 27, 29).
Aa
White text reads best on this color (17.86:1).
About this color
#011B1D is a very dark, muted teal or cyan. In OKLCH its lightness is 20%, its chroma 0.033 and its hue 202°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.032 away. White text reads best on it, at 17.86:1.
| Hue family | Teals and cyans |
| Lightness | very dark (20%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.86:1 |
Values
| HEX | #011B1D |
| RGB | rgb(1, 27, 29) |
| HSL | hsl(184, 93%, 6%) |
| OKLCH | oklch(20.3% 0.033 201.8) |
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 #011B1D | 17.86:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #011B1D | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #011B1D text on white | 17.86:1 | AAA | Lc 104.5 | Preferred for body text |
| #011B1D 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#C9DEDF
oklch(88.5% 0.022 200.2)
-
Step 300
300
#A4C9CB
oklch(81% 0.039 200.5)
-
Step 400
400
#70ADB1
oklch(70.8% 0.063 201.1)
-
Step 500
500
#45989E
oklch(63.1% 0.08 201.7)
-
Step 600
600
#1D8289
oklch(55.5% 0.087 202.1)
-
Step 700
700
#0A6E74
oklch(49.1% 0.081 201.6)
-
Step 800
800
#115A5F
oklch(42.8% 0.067 202)
-
Step 900
900
#184A4D
oklch(37.7% 0.053 200.8)
-
Step 950
950 (this color)
#011B1D
oklch(20.3% 0.033 201.8)
#011B1D 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) | #18191D | 0.034 |
| Deuteranopia (no green cones) | #13161D | 0.030 |
| Tritanopia (no blue cones) | #001D1C | 0.009 |
| Achromatopsia (no color) | #171717 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011B1D
#011B1D
oklch(20.3% 0.033 201.8)
- #241010
#241010
oklch(20.3% 0.034 20.5)
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 #011B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.032
- Rich Navy #001219 ΔE 0.036
- Almost Black #070D0D ΔE 0.055
- Dark #1B2431 ΔE 0.062
- Jet #212529 ΔE 0.065
- Oxford Blue #1B263B ΔE 0.077
- Dark Forest Green #002D04 ΔE 0.090
- Navy Blue #001146 ΔE 0.091
Use #011B1D 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.