#011C3C
Closest named color: Rich Black (#0D1B2A). oklch(22.8% 0.07 254.1), rgb(1, 28, 60).
Aa
White text reads best on this color (17.03:1).
About this color
#011C3C is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.070 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.036 away. White text reads best on it, at 17.03:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 17.03:1 |
Values
| HEX | #011C3C |
| RGB | rgb(1, 28, 60) |
| HSL | hsl(213, 97%, 12%) |
| OKLCH | oklch(22.8% 0.07 254.1) |
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 #011C3C | 17.03:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #011C3C | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #011C3C text on white | 17.03:1 | AAA | Lc 103.7 | Preferred for body text |
| #011C3C text on black | 1.23:1 | 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
#F0F6FD
oklch(97.1% 0.011 252.1)
-
Step 100
100
#DFEBFA
oklch(93.6% 0.024 254)
-
Step 200
200
#C5DBF8
oklch(88.4% 0.047 255.4)
-
Step 300
300
#9CC4F6
oklch(80.9% 0.083 254.3)
-
Step 400
400
#63A3F1
oklch(70.6% 0.133 254.3)
-
Step 500
500
#318AED
oklch(63.1% 0.17 254.1)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#005FB6
oklch(49% 0.157 254.2)
-
Step 800
800
#004E97
oklch(42.8% 0.136 254.1)
-
Step 900
900
#0B417A
oklch(37.6% 0.111 254.2)
-
Step 950
950 (this color)
#011C3C
oklch(22.8% 0.07 254.1)
#011C3C 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) | #0A1F3D | 0.016 |
| Deuteranopia (no green cones) | #001A3B | 0.007 |
| Tritanopia (no blue cones) | #002429 | 0.052 |
| Achromatopsia (no color) | #1C1C1C | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #011C3C
#011C3C
oklch(22.8% 0.07 254.1)
- #2A1800
#2A1800
oklch(22.8% 0.049 72.5)
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 #011C3C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.036
- Navy Blue #001146 ΔE 0.038
- Oxford Blue #1B263B ΔE 0.051
- Dark #1B2431 ΔE 0.052
- Night Blue #040348 ΔE 0.066
- Jet #212529 ΔE 0.070
- Dark Indigo #1F0954 ΔE 0.073
- Dark Navy #000435 ΔE 0.074
Use #011C3C 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.