#004685
Closest named color: Twilight Blue (#0A437A). oklch(39.5% 0.122 253.1), rgb(0, 70, 133).
Aa
White text reads best on this color (9.48:1).
About this color
#004685 is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.122 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.019 away. White text reads best on it, at 9.48:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #004685 |
| RGB | rgb(0, 70, 133) |
| HSL | hsl(208, 100%, 26%) |
| OKLCH | oklch(39.5% 0.122 253.1) |
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 #004685 | 9.48:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #004685 | 2.21:1 | Fails | Lc 12.7 | Not readable |
| #004685 text on white | 9.48:1 | AAA | Lc 91.3 | Preferred for body text |
| #004685 text on black | 2.21:1 | Fails | Lc -11.1 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFB
oklch(88.5% 0.051 252.9)
-
Step 300
300
#97C4FB
oklch(80.8% 0.092 253.8)
-
Step 400
400
#58A4F9
oklch(70.8% 0.146 252.8)
-
Step 500
500
#168AF6
oklch(63.2% 0.187 253)
-
Step 600
600
#0073D4
oklch(55.6% 0.172 253.1)
-
Step 700
700
#0060B3
oklch(49% 0.152 253.2)
-
Step 800
800
#004F94
oklch(42.8% 0.131 252.8)
-
Step 900
900 (this color)
#004685
oklch(39.5% 0.122 253.1)
-
Step 950
950
#04274B
oklch(27.2% 0.077 253)
#004685 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) | #234C87 | 0.030 |
| Deuteranopia (no green cones) | #004184 | 0.015 |
| Tritanopia (no blue cones) | #00555F | 0.089 |
| Achromatopsia (no color) | #464646 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004685
#004685
oklch(39.5% 0.122 253.1)
- #613E00
#613E00
oklch(39.5% 0.084 73.4)
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 #004685, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.019
- Cobalt #1E488F ΔE 0.025
- Light Navy #155084 ΔE 0.033
- Deep Sea Blue #015482 ΔE 0.044
- Dusk Blue #26538D ΔE 0.049
- Marine Blue #01386A ΔE 0.059
- Light Navy Blue #2E5A88 ΔE 0.071
- Dark Slate Blue #483D8B ΔE 0.073
Use #004685 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.