#030311
Closest named color: Almost Black (#070D0D). oklch(11.1% 0.037 278.5), rgb(3, 3, 17).
Aa
White text reads best on this color (20.48:1).
About this color
#030311 is a very dark, muted blue. In OKLCH its lightness is 11%, its chroma 0.037 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.056 away. White text reads best on it, at 20.48:1.
| Hue family | Blues |
| Lightness | very dark (11%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.02:1 |
| White text | 20.48:1 |
Values
| HEX | #030311 |
| RGB | rgb(3, 3, 17) |
| HSL | hsl(240, 70%, 4%) |
| OKLCH | oklch(11.1% 0.037 278.5) |
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 #030311 | 20.48:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #030311 | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #030311 text on white | 20.48:1 | AAA | Lc 106.0 | Preferred for body text |
| #030311 text on black | 1.02:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#BABEDD
oklch(80.8% 0.044 279.6)
-
Step 400
400
#969DCC
oklch(70.7% 0.069 277.9)
-
Step 500
500
#7D84BF
oklch(63.1% 0.089 278.3)
-
Step 600
600
#676DAB
oklch(55.6% 0.096 278.6)
-
Step 700
700
#555B93
oklch(49.1% 0.09 277.9)
-
Step 800
800
#464A77
oklch(42.6% 0.075 278.9)
-
Step 900
900
#3B3E60
oklch(37.7% 0.058 279.3)
-
Step 950
950 (this color)
#030311
oklch(11.1% 0.037 278.5)
#030311 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) | #000512 | 0.017 |
| Deuteranopia (no green cones) | #000411 | 0.015 |
| Tritanopia (no blue cones) | #000508 | 0.031 |
| Achromatopsia (no color) | #040404 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #030311
#030311
oklch(11.1% 0.037 278.5)
- #060400
#060400
oklch(10.8% 0.022 94.5)
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 #030311, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.056
- Midnight #03012D ΔE 0.061
- Dark Navy Blue #00022E ΔE 0.064
- Rich Navy #001219 ΔE 0.067
- Very Dark Blue #000133 ΔE 0.074
- Dark Navy #000435 ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.087
- Rich Black #0D1B2A ΔE 0.109
Use #030311 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.