#000319
Closest named color: Midnight (#03012D). oklch(11.4% 0.055 262.5), rgb(0, 3, 25).
Aa
White text reads best on this color (20.44:1).
About this color
#000319 is a very dark, muted blue. In OKLCH its lightness is 11%, its chroma 0.055 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.044 away. White text reads best on it, at 20.44:1.
| Hue family | Blues |
| Lightness | very dark (11%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.02:1 |
| White text | 20.44:1 |
Values
| HEX | #000319 |
| RGB | rgb(0, 3, 25) |
| HSL | hsl(233, 100%, 5%) |
| OKLCH | oklch(11.4% 0.055 262.5) |
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 #000319 | 20.44:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #000319 | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #000319 text on white | 20.44:1 | AAA | Lc 105.9 | Preferred for body text |
| #000319 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#AAC1EC
oklch(80.8% 0.066 262.8)
-
Step 400
400
#7DA0E2
oklch(70.6% 0.105 262.6)
-
Step 500
500
#5D87DA
oklch(63.1% 0.134 262.8)
-
Step 600
600
#436FC7
oklch(55.5% 0.145 262.6)
-
Step 700
700
#355DAC
oklch(49.1% 0.134 262.4)
-
Step 800
800
#2C4C8B
oklch(42.6% 0.111 262.4)
-
Step 900
900
#28406F
oklch(37.7% 0.086 262.6)
-
Step 950
950 (this color)
#000319
oklch(11.4% 0.055 262.5)
#000319 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) | #00061A | 0.016 |
| Deuteranopia (no green cones) | #000419 | 0.006 |
| Tritanopia (no blue cones) | #00080C | 0.043 |
| Achromatopsia (no color) | #040404 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000319
#000319
oklch(11.4% 0.055 262.5)
- #080400
#080400
oklch(11.2% 0.023 82.3)
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 #000319, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.044
- Dark Navy Blue #00022E ΔE 0.045
- Very Dark Blue #000133 ΔE 0.055
- Dark Navy #000435 ΔE 0.061
- Almost Black #070D0D ΔE 0.064
- Rich Navy #001219 ΔE 0.066
- Night Blue #040348 ΔE 0.100
- Rich Black #0D1B2A ΔE 0.106
Use #000319 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.