#041828
Closest named color: Rich Black (#0D1B2A). oklch(20.2% 0.042 244.7), rgb(4, 24, 40).
Aa
White text reads best on this color (18.00:1).
About this color
#041828 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.042 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.018 away. White text reads best on it, at 18.00:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 18.00:1 |
Values
| HEX | #041828 |
| RGB | rgb(4, 24, 40) |
| HSL | hsl(207, 82%, 9%) |
| OKLCH | oklch(20.2% 0.042 244.7) |
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 #041828 | 18.00:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #041828 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #041828 text on white | 18.00:1 | AAA | Lc 104.6 | Preferred for body text |
| #041828 text on black | 1.16:1 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF3
oklch(93.6% 0.015 244.7)
-
Step 200
200
#CBDCEB
oklch(88.6% 0.028 244.7)
-
Step 300
300
#A7C5DF
oklch(81% 0.049 244.6)
-
Step 400
400
#76A6CF
oklch(70.7% 0.079 245)
-
Step 500
500
#5090C3
oklch(63.2% 0.102 244.5)
-
Step 600
600
#3179AF
oklch(55.6% 0.11 244.5)
-
Step 700
700
#236696
oklch(49.2% 0.102 244)
-
Step 800
800
#1F537A
oklch(42.7% 0.085 244.5)
-
Step 900
900
#204562
oklch(37.7% 0.066 244.5)
-
Step 950
950 (this color)
#041828
oklch(20.2% 0.042 244.7)
#041828 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) | #111929 | 0.019 |
| Deuteranopia (no green cones) | #0B1528 | 0.013 |
| Tritanopia (no blue cones) | #001C1E | 0.029 |
| Achromatopsia (no color) | #171717 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041828
#041828
oklch(20.2% 0.042 244.7)
- #231202
#231202
oklch(20.2% 0.041 64.7)
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 #041828, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.018
- Rich Navy #001219 ΔE 0.037
- Dark #1B2431 ΔE 0.058
- Almost Black #070D0D ΔE 0.061
- Navy Blue #001146 ΔE 0.064
- Jet #212529 ΔE 0.068
- Oxford Blue #1B263B ΔE 0.069
- Dark Navy #000435 ΔE 0.071
Use #041828 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.