#334691
Closest named color: Cobalt (#1E488F). oklch(42.1% 0.126 269.6), rgb(51, 70, 145).
Aa
White text reads best on this color (8.65:1).
About this color
#334691 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.126 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.022 away. White text reads best on it, at 8.65:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.126) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.42:1 |
| White text | 8.65:1 |
Values
| HEX | #334691 |
| RGB | rgb(51, 70, 145) |
| HSL | hsl(228, 48%, 38%) |
| OKLCH | oklch(42.1% 0.126 269.6) |
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 #334691 | 8.65:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #334691 | 2.42:1 | Fails | Lc 14.6 | Not readable |
| #334691 text on white | 8.65:1 | AAA | Lc 89.4 | Fine for body text |
| #334691 text on black | 2.42:1 | Fails | Lc -12.8 | 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 800.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED9F5
oklch(88.6% 0.04 268.5)
-
Step 300
300
#AEBFF1
oklch(80.9% 0.073 270.1)
-
Step 400
400
#849DEA
oklch(70.8% 0.117 269.6)
-
Step 500
500
#6682E4
oklch(63.1% 0.151 269.7)
-
Step 600
600
#4F69D1
oklch(55.5% 0.163 269.9)
-
Step 700
700
#4057B5
oklch(49.1% 0.151 269.7)
-
Step 800
800 (this color)
#334691
oklch(42.1% 0.126 269.6)
-
Step 900
900
#2D3D75
oklch(37.7% 0.098 269.3)
-
Step 950
950
#1B2445
oklch(27.1% 0.063 270.3)
#334691 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) | #1C5094 | 0.032 |
| Deuteranopia (no green cones) | #01478F | 0.037 |
| Tritanopia (no blue cones) | #005764 | 0.106 |
| Achromatopsia (no color) | #4B4B4B | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334691
#334691
oklch(42.1% 0.126 269.6)
- #604A00
#604A00
oklch(42% 0.086 89.1)
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 #334691, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.022
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.036
- Dusk Blue #26538D ΔE 0.039
- Light Navy #155084 ΔE 0.045
- Twilight #4E518B ΔE 0.054
- Twilight Blue #0A437A ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.058
Use #334691 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.