#000403
Closest named color: Almost Black (#070D0D). oklch(9.6% 0.017 179.9), rgb(0, 4, 3).
Aa
White text reads best on this color (20.61:1).
About this color
#000403 is a very dark close to neutral grey. In OKLCH its lightness is 10%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.057 away. White text reads best on it, at 20.61:1.
| Hue family | Neutrals |
| Lightness | very dark (10%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.01:1 |
| White text | 20.61:1 |
Values
| HEX | #000403 |
| RGB | rgb(0, 4, 3) |
| HSL | hsl(165, 100%, 1%) |
| OKLCH | oklch(9.6% 0.017 179.9) |
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 #000403 | 20.61:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #000403 | 1.01:1 | Fails | Lc 0.0 | Not readable |
| #000403 text on white | 20.61:1 | AAA | Lc 106.0 | Preferred for body text |
| #000403 text on black | 1.01:1 | 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
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D2DCD9
oklch(88.6% 0.012 176.3)
-
Step 300
300
#B3C5C1
oklch(80.9% 0.02 181)
-
Step 400
400
#8BA8A1
oklch(70.8% 0.034 179)
-
Step 500
500
#6E928A
oklch(63.1% 0.042 179.7)
-
Step 600
600
#557C74
oklch(55.5% 0.046 180.3)
-
Step 700
700
#456961
oklch(49.1% 0.043 178.9)
-
Step 800
800
#395650
oklch(42.8% 0.036 180.1)
-
Step 900
900
#324742
oklch(37.9% 0.028 178.4)
-
Step 950
950 (this color)
#000403
oklch(9.6% 0.017 179.9)
#000403 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) | #040303 | 0.021 |
| Deuteranopia (no green cones) | #030303 | 0.017 |
| Tritanopia (no blue cones) | #000404 | 0.005 |
| Achromatopsia (no color) | #030303 | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #000403
#000403
oklch(9.6% 0.017 179.9)
- #060203
#060203
oklch(9.8% 0.015 359.8)
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 #000403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.057
- Rich Navy #001219 ΔE 0.077
- Very Dark Brown #1D0200 ΔE 0.089
- Black #000000 ΔE 0.097
- Midnight #03012D ΔE 0.101
- Dark Navy Blue #00022E ΔE 0.101
- Very Dark Blue #000133 ΔE 0.111
- Dark Navy #000435 ΔE 0.115
Use #000403 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.