#004159
Closest named color: Midnight Green (#073B4C). oklch(35.2% 0.071 230.9), rgb(0, 65, 89).
Aa
White text reads best on this color (11.05:1).
About this color
#004159 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.071 and its hue 231°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.026 away. White text reads best on it, at 11.05:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.90:1 |
| White text | 11.05:1 |
Values
| HEX | #004159 |
| RGB | rgb(0, 65, 89) |
| HSL | hsl(196, 100%, 17%) |
| OKLCH | oklch(35.2% 0.071 230.9) |
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 #004159 | 11.05:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #004159 | 1.90:1 | Fails | Lc 8.8 | Not readable |
| #004159 text on white | 11.05:1 | AAA | Lc 95.1 | Preferred for body text |
| #004159 text on black | 1.90:1 | Fails | Lc -7.6 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF2
oklch(93.6% 0.015 229)
-
Step 200
200
#C6DDE9
oklch(88.4% 0.03 230.3)
-
Step 300
300
#9EC8DD
oklch(81% 0.053 229.8)
-
Step 400
400
#66AACC
oklch(70.6% 0.085 231.4)
-
Step 500
500
#3395BF
oklch(63.2% 0.109 230.7)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900 (this color)
#004159
oklch(35.2% 0.071 230.9)
-
Step 950
950
#0A2A38
oklch(26.9% 0.045 230.7)
#004159 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) | #35405A | 0.048 |
| Deuteranopia (no green cones) | #2A3959 | 0.039 |
| Tritanopia (no blue cones) | #004849 | 0.042 |
| Achromatopsia (no color) | #3C3C3C | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004159
#004159
oklch(35.2% 0.071 230.9)
- #582F15
#582F15
oklch(35.3% 0.071 50.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes and gradients that use #004159
These curated palettes and gradients contain exactly #004159. Open one to see the full color scheme around it.
Gradients
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.029
- Charcoal #264653 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.037
- Prussian Blue #1D3557 ΔE 0.040
- Marine Blue #01386A ΔE 0.046
- Dark Teal #014D4E ΔE 0.050
- Twilight Blue #0A437A ΔE 0.058
Use #004159 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.