#34337A
Closest named color: Dark Slate Blue (#483D8B). oklch(36.5% 0.118 279.5), rgb(52, 51, 122).
Aa
White text reads best on this color (11.04:1).
About this color
#34337A is a dark, moderately saturated blue. In OKLCH its lightness is 36%, its chroma 0.118 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 11.04:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.90:1 |
| White text | 11.04:1 |
Values
| HEX | #34337A |
| RGB | rgb(52, 51, 122) |
| HSL | hsl(241, 41%, 34%) |
| OKLCH | oklch(36.5% 0.118 279.5) |
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 #34337A | 11.04:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #34337A | 1.90:1 | Fails | Lc 8.6 | Not readable |
| #34337A text on white | 11.04:1 | AAA | Lc 95.3 | Preferred for body text |
| #34337A text on black | 1.90:1 | Fails | Lc -7.4 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E8FB
oklch(93.5% 0.026 281.1)
-
Step 200
200
#D2D6FA
oklch(88.4% 0.05 280.3)
-
Step 300
300
#B4BBF9
oklch(80.9% 0.088 279.2)
-
Step 400
400
#8F95F7
oklch(70.7% 0.142 279.4)
-
Step 500
500
#7677F3
oklch(63% 0.181 279.5)
-
Step 600
600
#615CE1
oklch(55.5% 0.196 279.5)
-
Step 700
700
#514BC4
oklch(49.1% 0.183 279.5)
-
Step 800
800
#423E9E
oklch(42.6% 0.151 279.7)
-
Step 900
900 (this color)
#34337A
oklch(36.5% 0.118 279.5)
-
Step 950
950
#20214A
oklch(27.1% 0.074 279.2)
#34337A 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) | #013F7C | 0.052 |
| Deuteranopia (no green cones) | #003979 | 0.050 |
| Tritanopia (no blue cones) | #114351 | 0.101 |
| Achromatopsia (no color) | #3C3C3C | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #34337A
#34337A
oklch(36.5% 0.118 279.5)
- #483F00
#483F00
oklch(36.6% 0.076 100.2)
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 #34337A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.055
- Marine Blue #01386A ΔE 0.059
- Cobalt #1E488F ΔE 0.065
- Blueberry #464196 ΔE 0.066
- Prussian Blue #1D3557 ΔE 0.071
- Marine #042E60 ΔE 0.075
- Light Navy #155084 ΔE 0.082
Use #34337A 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.