#034564
Closest named color: Dark Grey Blue (#29465B). oklch(37% 0.079 237), rgb(3, 69, 100).
Aa
White text reads best on this color (10.29:1).
About this color
#034564 is a dark, moderately saturated blue. In OKLCH its lightness is 37%, its chroma 0.079 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.031 away. White text reads best on it, at 10.29:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.29:1 |
Values
| HEX | #034564 |
| RGB | rgb(3, 69, 100) |
| HSL | hsl(199, 94%, 20%) |
| OKLCH | oklch(37% 0.079 237) |
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 #034564 | 10.29:1 | AAA | Lc -97.5 | Preferred for body text |
| Black text on #034564 | 2.03:1 | Fails | Lc 10.5 | Not readable |
| #034564 text on white | 10.29:1 | AAA | Lc 93.4 | Preferred for body text |
| #034564 text on black | 2.03:1 | Fails | Lc -9.1 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF4
oklch(93.6% 0.017 236.7)
-
Step 200
200
#C6DDED
oklch(88.5% 0.033 238.2)
-
Step 300
300
#9DC7E3
oklch(80.9% 0.06 237.7)
-
Step 400
400
#63AAD4
oklch(70.8% 0.094 236.2)
-
Step 500
500
#2D93C9
oklch(63% 0.121 237)
-
Step 600
600
#007CB1
oklch(55.6% 0.122 237.2)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900 (this color)
#034564
oklch(37% 0.079 237)
-
Step 950
950
#092A3C
oklch(27.1% 0.05 237)
#034564 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) | #364565 | 0.045 |
| Deuteranopia (no green cones) | #293D63 | 0.035 |
| Tritanopia (no blue cones) | #004D50 | 0.050 |
| Achromatopsia (no color) | #404040 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #034564
#034564
oklch(37% 0.079 237)
- #5E330E
#5E330E
oklch(36.9% 0.079 56.7)
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 #034564, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.031
- Charcoal #264653 ΔE 0.037
- Twilight Blue #0A437A ΔE 0.040
- Marine Blue #01386A ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.045
- Midnight Green #073B4C ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.051
- Dark Teal #014D4E ΔE 0.053
Use #034564 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.