#011928
Closest named color: Rich Black (#0D1B2A). oklch(20.3% 0.043 238.4), rgb(1, 25, 40).
Aa
White text reads best on this color (17.93:1).
About this color
#011928 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.043 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.019 away. White text reads best on it, at 17.93:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.93:1 |
Values
| HEX | #011928 |
| RGB | rgb(1, 25, 40) |
| HSL | hsl(203, 95%, 8%) |
| OKLCH | oklch(20.3% 0.043 238.4) |
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 #011928 | 17.93:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #011928 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #011928 text on white | 17.93:1 | AAA | Lc 104.5 | Preferred for body text |
| #011928 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DE
oklch(80.9% 0.051 238.2)
-
Step 400
400
#6EA8CE
oklch(70.6% 0.082 238.2)
-
Step 500
500
#4492C2
oklch(63.1% 0.105 238.6)
-
Step 600
600
#1D7BAE
oklch(55.5% 0.114 238.7)
-
Step 700
700
#0A6896
oklch(49.2% 0.107 238.4)
-
Step 800
800
#105579
oklch(42.7% 0.087 237.9)
-
Step 900
900
#174662
oklch(37.6% 0.069 238.8)
-
Step 950
950 (this color)
#011928
oklch(20.3% 0.043 238.4)
#011928 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) | #121929 | 0.024 |
| Deuteranopia (no green cones) | #0C1528 | 0.019 |
| Tritanopia (no blue cones) | #001D1E | 0.029 |
| Achromatopsia (no color) | #171717 | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011928
#011928
oklch(20.3% 0.043 238.4)
- #251102
#251102
oklch(20.3% 0.043 58.5)
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 #011928, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.019
- Rich Navy #001219 ΔE 0.037
- Dark #1B2431 ΔE 0.058
- Almost Black #070D0D ΔE 0.062
- Navy Blue #001146 ΔE 0.066
- Jet #212529 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.069
- Dark Navy #000435 ΔE 0.074
Use #011928 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.