#041023
Closest named color: Rich Navy (#001219). oklch(17.4% 0.044 257.3), rgb(4, 16, 35).
Aa
White text reads best on this color (19.02:1).
About this color
#041023 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.044 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.026 away. White text reads best on it, at 19.02:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 19.02:1 |
Values
| HEX | #041023 |
| RGB | rgb(4, 16, 35) |
| HSL | hsl(217, 79%, 8%) |
| OKLCH | oklch(17.4% 0.044 257.3) |
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 #041023 | 19.02:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #041023 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #041023 text on white | 19.02:1 | AAA | Lc 105.3 | Preferred for body text |
| #041023 text on black | 1.10:1 | 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
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ACC2E3
oklch(80.8% 0.053 258.4)
-
Step 400
400
#80A3D4
oklch(70.8% 0.082 256.9)
-
Step 500
500
#5F8BC9
oklch(63.1% 0.106 257.1)
-
Step 600
600
#4574B6
oklch(55.7% 0.115 257.1)
-
Step 700
700
#37619D
oklch(49.2% 0.108 257.5)
-
Step 800
800
#2E4F7F
oklch(42.7% 0.089 257.8)
-
Step 900
900
#294266
oklch(37.7% 0.069 257.5)
-
Step 950
950 (this color)
#041023
oklch(17.4% 0.044 257.3)
#041023 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) | #071224 | 0.010 |
| Deuteranopia (no green cones) | #040F23 | 0.004 |
| Tritanopia (no blue cones) | #001417 | 0.034 |
| Achromatopsia (no color) | #101010 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #041023
#041023
oklch(17.4% 0.044 257.3)
- #190E00
#190E00
oklch(17.5% 0.036 78)
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 #041023, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.026
- Rich Black #0D1B2A ΔE 0.045
- Almost Black #070D0D ΔE 0.045
- Dark Navy #000435 ΔE 0.054
- Dark Navy Blue #00022E ΔE 0.056
- Midnight #03012D ΔE 0.056
- Very Dark Blue #000133 ΔE 0.061
- Navy Blue #001146 ΔE 0.069
Use #041023 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.