#03040A
Closest named color: Almost Black (#070D0D). oklch(10.9% 0.018 272.7), rgb(3, 4, 10).
Aa
White text reads best on this color (20.47:1).
About this color
#03040A is a very dark close to neutral grey. In OKLCH its lightness is 11%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.047 away. White text reads best on it, at 20.47:1.
| Hue family | Neutrals |
| Lightness | very dark (11%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.02:1 |
| White text | 20.47:1 |
Values
| HEX | #03040A |
| RGB | rgb(3, 4, 10) |
| HSL | hsl(231, 54%, 3%) |
| OKLCH | oklch(10.9% 0.018 272.7) |
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 #03040A | 20.47:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #03040A | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #03040A text on white | 20.47:1 | AAA | Lc 106.0 | Preferred for body text |
| #03040A 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D6D9E1
oklch(88.5% 0.011 269.5)
-
Step 300
300
#BCC0CF
oklch(80.9% 0.021 274)
-
Step 400
400
#99A0B7
oklch(70.8% 0.034 272.1)
-
Step 500
500
#8088A5
oklch(63% 0.045 273)
-
Step 600
600
#6A7290
oklch(55.7% 0.048 273.1)
-
Step 700
700
#585F7A
oklch(49% 0.044 273.4)
-
Step 800
800
#484E64
oklch(42.7% 0.037 272.8)
-
Step 900
900
#3C4151
oklch(37.7% 0.028 271.4)
-
Step 950
950 (this color)
#03040A
oklch(10.9% 0.018 272.7)
#03040A 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) | #03040A | 0.000 |
| Deuteranopia (no green cones) | #02040A | 0.004 |
| Tritanopia (no blue cones) | #020506 | 0.015 |
| Achromatopsia (no color) | #040404 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03040A
#03040A
oklch(10.9% 0.018 272.7)
- #060401
#060401
oklch(10.9% 0.016 86.9)
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 #03040A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.047
- Rich Navy #001219 ΔE 0.064
- Midnight #03012D ΔE 0.077
- Very Dark Brown #1D0200 ΔE 0.078
- Dark Navy Blue #00022E ΔE 0.079
- Very Dark Blue #000133 ΔE 0.089
- Dark Navy #000435 ΔE 0.093
- Rich Black #0D1B2A ΔE 0.110
Use #03040A 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.