#041F3A
Closest named color: Rich Black (#0D1B2A). oklch(23.6% 0.061 251.4), rgb(4, 31, 58).
Aa
White text reads best on this color (16.63:1).
About this color
#041F3A is a very dark, muted blue. In OKLCH its lightness is 24%, its chroma 0.061 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.032 away. White text reads best on it, at 16.63:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.26:1 |
| White text | 16.63:1 |
Values
| HEX | #041F3A |
| RGB | rgb(4, 31, 58) |
| HSL | hsl(210, 87%, 12%) |
| OKLCH | oklch(23.6% 0.061 251.4) |
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 #041F3A | 16.63:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #041F3A | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #041F3A text on white | 16.63:1 | AAA | Lc 103.3 | Preferred for body text |
| #041F3A text on black | 1.26:1 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DCF4
oklch(88.6% 0.041 250.6)
-
Step 300
300
#9EC4EF
oklch(80.8% 0.074 251.8)
-
Step 400
400
#67A5E7
oklch(70.7% 0.117 251.2)
-
Step 500
500
#398DE0
oklch(63.2% 0.149 251.2)
-
Step 600
600
#0575CD
oklch(55.7% 0.161 251.1)
-
Step 700
700
#0062AF
oklch(49.2% 0.144 251.3)
-
Step 800
800
#025090
oklch(42.7% 0.124 251.4)
-
Step 900
900
#114373
oklch(37.8% 0.097 251.5)
-
Step 950
950 (this color)
#041F3A
oklch(23.6% 0.061 251.4)
#041F3A 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) | #12213B | 0.018 |
| Deuteranopia (no green cones) | #091C39 | 0.010 |
| Tritanopia (no blue cones) | #002529 | 0.044 |
| Achromatopsia (no color) | #1E1E1E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041F3A
#041F3A
oklch(23.6% 0.061 251.4)
- #2D1900
#2D1900
oklch(23.5% 0.051 70.1)
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 #041F3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.032
- Oxford Blue #1B263B ΔE 0.040
- Dark #1B2431 ΔE 0.040
- Navy Blue #001146 ΔE 0.051
- Jet #212529 ΔE 0.058
- Rich Navy #001219 ΔE 0.077
- Space Cadet #2B2D42 ΔE 0.077
- Night Blue #040348 ΔE 0.078
Use #041F3A 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.