#001904
Closest named color: Rich Navy (#001219). oklch(18.6% 0.055 147.3), rgb(0, 25, 4).
Aa
White text reads best on this color (18.40:1).
About this color
#001904 is a very dark, muted green. In OKLCH its lightness is 19%, its chroma 0.055 and its hue 147°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.058 away. White text reads best on it, at 18.40:1.
| Hue family | Greens |
| Lightness | very dark (19%) |
| Chroma | muted (0.055) |
| Temperature | in between |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.40:1 |
Values
| HEX | #001904 |
| RGB | rgb(0, 25, 4) |
| HSL | hsl(130, 100%, 5%) |
| OKLCH | oklch(18.6% 0.055 147.3) |
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 #001904 | 18.40:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #001904 | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #001904 text on white | 18.40:1 | AAA | Lc 104.9 | Preferred for body text |
| #001904 text on black | 1.14:1 | 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
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EDE3
oklch(93.5% 0.018 148.1)
-
Step 200
200
#CAE0CC
oklch(88.5% 0.036 147.9)
-
Step 300
300
#A5CDA9
oklch(81% 0.066 147.6)
-
Step 400
400
#73B27B
oklch(70.6% 0.103 147.5)
-
Step 500
500
#4A9F58
oklch(63.2% 0.133 147.3)
-
Step 600
600
#26893D
oklch(55.6% 0.144 147.4)
-
Step 700
700
#16742F
oklch(49.1% 0.134 147.4)
-
Step 800
800
#175F28
oklch(42.8% 0.111 147.4)
-
Step 900
900
#1B4E25
oklch(37.8% 0.087 147.5)
-
Step 950
950 (this color)
#001904
oklch(18.6% 0.055 147.3)
#001904 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) | #191603 | 0.041 |
| Deuteranopia (no green cones) | #161305 | 0.042 |
| Tritanopia (no blue cones) | #001814 | 0.033 |
| Achromatopsia (no color) | #141414 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #001904
#001904
oklch(18.6% 0.055 147.3)
- #1F081F
#1F081F
oklch(18.5% 0.055 327.5)
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 #001904, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.058
- Almost Black #070D0D ΔE 0.059
- Dark Forest Green #002D04 ΔE 0.077
- Rich Black #0D1B2A ΔE 0.079
- Very Dark Green #062E03 ΔE 0.083
- Jet #212529 ΔE 0.095
- Very Dark Brown #1D0200 ΔE 0.097
- Dark Brown #341C02 ΔE 0.099
Use #001904 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.