#011E2B
Closest named color: Rich Black (#0D1B2A). oklch(22.1% 0.043 231), rgb(1, 30, 43).
Aa
White text reads best on this color (17.18:1).
About this color
#011E2B is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.043 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.016 away. White text reads best on it, at 17.18:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.22:1 |
| White text | 17.18:1 |
Values
| HEX | #011E2B |
| RGB | rgb(1, 30, 43) |
| HSL | hsl(199, 95%, 9%) |
| OKLCH | oklch(22.1% 0.043 231) |
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 #011E2B | 17.18:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #011E2B | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #011E2B text on white | 17.18:1 | AAA | Lc 103.9 | Preferred for body text |
| #011E2B text on black | 1.22:1 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE9
oklch(88.5% 0.029 231.5)
-
Step 300
300
#A0C7DC
oklch(80.8% 0.051 231.7)
-
Step 400
400
#69AACA
oklch(70.7% 0.081 230.8)
-
Step 500
500
#3994BD
oklch(63% 0.105 231.4)
-
Step 600
600
#007EA9
oklch(55.6% 0.112 231.2)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#10485F
oklch(37.8% 0.068 230.5)
-
Step 950
950 (this color)
#011E2B
oklch(22.1% 0.043 231)
#011E2B 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) | #171E2C | 0.028 |
| Deuteranopia (no green cones) | #11192B | 0.025 |
| Tritanopia (no blue cones) | #002222 | 0.027 |
| Achromatopsia (no color) | #1B1B1B | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011E2B
#011E2B
oklch(22.1% 0.043 231)
- #2A1407
#2A1407
oklch(22% 0.043 50.2)
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 #011E2B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.016
- Dark #1B2431 ΔE 0.043
- Rich Navy #001219 ΔE 0.053
- Jet #212529 ΔE 0.054
- Oxford Blue #1B263B ΔE 0.054
- Navy Blue #001146 ΔE 0.070
- Almost Black #070D0D ΔE 0.077
- Dark Navy #000435 ΔE 0.088
Use #011E2B 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.