#040623
Closest named color: Midnight (#03012D). oklch(14.5% 0.061 271.8), rgb(4, 6, 35).
Aa
White text reads best on this color (19.89:1).
About this color
#040623 is a very dark, muted blue. In OKLCH its lightness is 15%, its chroma 0.061 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.027 away. White text reads best on it, at 19.89:1.
| Hue family | Blues |
| Lightness | very dark (15%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.05:1 |
| White text | 19.89:1 |
Values
| HEX | #040623 |
| RGB | rgb(4, 6, 35) |
| HSL | hsl(236, 79%, 8%) |
| OKLCH | oklch(14.5% 0.061 271.8) |
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 #040623 | 19.89:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #040623 | 1.05:1 | Fails | Lc 0.0 | Not readable |
| #040623 text on white | 19.89:1 | AAA | Lc 105.7 | Preferred for body text |
| #040623 text on black | 1.05:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#B0BFF0
oklch(81% 0.071 271.5)
-
Step 400
400
#879CE9
oklch(70.8% 0.115 271.6)
-
Step 500
500
#6B81E2
oklch(63.1% 0.148 271.9)
-
Step 600
600
#5468D0
oklch(55.6% 0.161 272)
-
Step 700
700
#4456B4
oklch(49% 0.15 271.7)
-
Step 800
800
#384792
oklch(42.7% 0.124 271.7)
-
Step 900
900
#303C74
oklch(37.6% 0.096 271.9)
-
Step 950
950 (this color)
#040623
oklch(14.5% 0.061 271.8)
#040623 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) | #000B24 | 0.019 |
| Deuteranopia (no green cones) | #000822 | 0.013 |
| Tritanopia (no blue cones) | #000D13 | 0.048 |
| Achromatopsia (no color) | #090909 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040623
#040623
oklch(14.5% 0.061 271.8)
- #0F0A00
#0F0A00
oklch(14.7% 0.03 92.5)
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 #040623, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.027
- Dark Navy Blue #00022E ΔE 0.030
- Dark Navy #000435 ΔE 0.039
- Very Dark Blue #000133 ΔE 0.039
- Rich Navy #001219 ΔE 0.053
- Almost Black #070D0D ΔE 0.060
- Night Blue #040348 ΔE 0.074
- Navy Blue #001146 ΔE 0.078
Use #040623 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.