#04091A
Closest named color: Rich Navy (#001219). oklch(14.5% 0.038 265.9), rgb(4, 9, 26).
Aa
White text reads best on this color (19.82:1).
About this color
#04091A is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.038 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.036 away. White text reads best on it, at 19.82:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.038) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.05:1 |
| White text | 19.82:1 |
Values
| HEX | #04091A |
| RGB | rgb(4, 9, 26) |
| HSL | hsl(226, 73%, 6%) |
| OKLCH | oklch(14.5% 0.038 265.9) |
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 #04091A | 19.82:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #04091A | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #04091A text on white | 19.82:1 | AAA | Lc 105.8 | Preferred for body text |
| #04091A text on black | 1.05:1 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D1D9EA
oklch(88.4% 0.025 265.6)
-
Step 300
300
#B3C1DF
oklch(81% 0.045 265.5)
-
Step 400
400
#8BA0CF
oklch(70.7% 0.073 265.9)
-
Step 500
500
#6F88C2
oklch(63.1% 0.093 266)
-
Step 600
600
#5771AF
oklch(55.6% 0.102 265.9)
-
Step 700
700
#475E96
oklch(49% 0.095 266.1)
-
Step 800
800
#3B4D7A
oklch(42.7% 0.078 266.6)
-
Step 900
900
#324162
oklch(37.8% 0.06 265)
-
Step 950
950 (this color)
#04091A
oklch(14.5% 0.038 265.9)
#04091A 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) | #030B1B | 0.008 |
| Deuteranopia (no green cones) | #01091A | 0.008 |
| Tritanopia (no blue cones) | #000D10 | 0.032 |
| Achromatopsia (no color) | #0A0A0A | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04091A
#04091A
oklch(14.5% 0.038 265.9)
- #100900
#100900
oklch(14.6% 0.03 84.6)
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 #04091A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.036
- Almost Black #070D0D ΔE 0.037
- Midnight #03012D ΔE 0.050
- Dark Navy Blue #00022E ΔE 0.051
- Dark Navy #000435 ΔE 0.059
- Very Dark Blue #000133 ΔE 0.060
- Rich Black #0D1B2A ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.084
Use #04091A 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.