#041839
Closest named color: Navy Blue (#001146). oklch(21.6% 0.07 259.1), rgb(4, 24, 57).
Aa
White text reads best on this color (17.57:1).
About this color
#041839 is a very dark, muted blue. In OKLCH its lightness is 22%, its chroma 0.070 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.033 away. White text reads best on it, at 17.57:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | muted (0.070) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.19:1 |
| White text | 17.57:1 |
Values
| HEX | #041839 |
| RGB | rgb(4, 24, 57) |
| HSL | hsl(217, 87%, 12%) |
| OKLCH | oklch(21.6% 0.07 259.1) |
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 #041839 | 17.57:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #041839 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #041839 text on white | 17.57:1 | AAA | Lc 104.2 | Preferred for body text |
| #041839 text on black | 1.19:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E1EBFA
oklch(93.7% 0.023 258.4)
-
Step 200
200
#C7DAF8
oklch(88.4% 0.046 259.5)
-
Step 300
300
#A1C2F6
oklch(80.8% 0.082 259.4)
-
Step 400
400
#6DA1F2
oklch(70.7% 0.132 259)
-
Step 500
500
#4587EE
oklch(63.2% 0.169 259.1)
-
Step 600
600
#256EDC
oklch(55.7% 0.183 259)
-
Step 700
700
#175BBF
oklch(49.1% 0.171 259.1)
-
Step 800
800
#164B9A
oklch(42.7% 0.141 258.9)
-
Step 900
900
#193F7B
oklch(37.6% 0.111 259.3)
-
Step 950
950 (this color)
#041839
oklch(21.6% 0.07 259.1)
#041839 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) | #051C3A | 0.014 |
| Deuteranopia (no green cones) | #001738 | 0.007 |
| Tritanopia (no blue cones) | #002025 | 0.054 |
| Achromatopsia (no color) | #191919 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041839
#041839
oklch(21.6% 0.07 259.1)
- #251700
#251700
oklch(21.7% 0.045 79.1)
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 #041839, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.033
- Rich Black #0D1B2A ΔE 0.035
- Night Blue #040348 ΔE 0.058
- Dark #1B2431 ΔE 0.059
- Oxford Blue #1B263B ΔE 0.060
- Dark Navy #000435 ΔE 0.062
- Rich Navy #001219 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.071
Use #041839 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.