#004168
Closest named color: Marine Blue (#01386A). oklch(36.1% 0.089 243.7), rgb(0, 65, 104).
Aa
White text reads best on this color (10.73:1).
About this color
#004168 is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.089 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.029 away. White text reads best on it, at 10.73:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.95:1 |
| White text | 10.73:1 |
Values
| HEX | #004168 |
| RGB | rgb(0, 65, 104) |
| HSL | hsl(203, 100%, 20%) |
| OKLCH | oklch(36.1% 0.089 243.7) |
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 #004168 | 10.73:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #004168 | 1.95:1 | Fails | Lc 9.6 | Not readable |
| #004168 text on white | 10.73:1 | AAA | Lc 94.4 | Preferred for body text |
| #004168 text on black | 1.95:1 | Fails | Lc -8.2 | 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 900.
-
Step 50
50
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C5DDF0
oklch(88.6% 0.037 241.8)
-
Step 300
300
#9CC6E9
oklch(80.9% 0.067 243.9)
-
Step 400
400
#63A8DE
oklch(70.8% 0.106 243.7)
-
Step 500
500
#2D91D5
oklch(63.2% 0.136 243.5)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800
#005383
oklch(42.6% 0.105 243.8)
-
Step 900
900 (this color)
#004168
oklch(36.1% 0.089 243.7)
-
Step 950
950
#092940
oklch(27.1% 0.056 244.1)
#004168 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) | #2E426A | 0.038 |
| Deuteranopia (no green cones) | #1F3A67 | 0.027 |
| Tritanopia (no blue cones) | #004B4F | 0.062 |
| Achromatopsia (no color) | #3E3E3E | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004168
#004168
oklch(36.1% 0.089 243.7)
- #5B3200
#5B3200
oklch(36.1% 0.082 63.1)
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 #004168, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.029
- Twilight Blue #0A437A ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.048
- Midnight Green #073B4C ΔE 0.049
- Charcoal #264653 ΔE 0.051
- Marine #042E60 ΔE 0.059
Use #004168 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.