#041633
Closest named color: Rich Black (#0D1B2A). oklch(20.5% 0.063 258.6), rgb(4, 22, 51).
Aa
White text reads best on this color (17.98:1).
About this color
#041633 is a very dark, muted blue. In OKLCH its lightness is 20%, its chroma 0.063 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.031 away. White text reads best on it, at 17.98:1.
| Hue family | Blues |
| Lightness | very dark (20%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.16:1 |
| White text | 17.98:1 |
Values
| HEX | #041633 |
| RGB | rgb(4, 22, 51) |
| HSL | hsl(217, 85%, 11%) |
| OKLCH | oklch(20.5% 0.063 258.6) |
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 #041633 | 17.98:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #041633 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #041633 text on white | 17.98:1 | AAA | Lc 104.5 | Preferred for body text |
| #041633 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E1EBF9
oklch(93.7% 0.022 256.7)
-
Step 200
200
#C9DAF5
oklch(88.4% 0.042 259.6)
-
Step 300
300
#A4C2F1
oklch(80.8% 0.074 259.3)
-
Step 400
400
#72A2EA
oklch(70.8% 0.118 258.3)
-
Step 500
500
#4C88E4
oklch(63.1% 0.153 258.7)
-
Step 600
600
#2E70D2
oklch(55.6% 0.165 258.6)
-
Step 700
700
#215DB6
oklch(49.1% 0.154 258.7)
-
Step 800
800
#1D4D93
oklch(42.8% 0.127 258.3)
-
Step 900
900
#1E4075
oklch(37.6% 0.099 259)
-
Step 950
950 (this color)
#041633
oklch(20.5% 0.063 258.6)
#041633 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) | #061934 | 0.011 |
| Deuteranopia (no green cones) | #001532 | 0.008 |
| Tritanopia (no blue cones) | #001D22 | 0.047 |
| Achromatopsia (no color) | #171717 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041633
#041633
oklch(20.5% 0.063 258.6)
- #211400
#211400
oklch(20.3% 0.042 78.8)
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 #041633, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.031
- Navy Blue #001146 ΔE 0.040
- Rich Navy #001219 ΔE 0.055
- Dark Navy #000435 ΔE 0.056
- Night Blue #040348 ΔE 0.060
- Dark #1B2431 ΔE 0.063
- Very Dark Blue #000133 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.068
Use #041633 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.