#334FB2
Closest named color: Blue Blue (#2242C7). oklch(46.5% 0.161 267.7), rgb(51, 79, 178).
Aa
White text reads best on this color (7.23:1).
About this color
#334FB2 is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.161 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Blue (#2242C7), ΔE 0.049 away. White text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Blue Blue (#2242C7) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #334FB2 |
| RGB | rgb(51, 79, 178) |
| HSL | hsl(227, 55%, 45%) |
| OKLCH | oklch(46.5% 0.161 267.7) |
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 #334FB2 | 7.23:1 | AAA | Lc -89.6 | Fine for body text |
| Black text on #334FB2 | 2.90:1 | Fails | Lc 19.3 | Dividers and decoration only |
| #334FB2 text on white | 7.23:1 | AAA | Lc 84.7 | Fine for body text |
| #334FB2 text on black | 2.90:1 | Fails | Lc -17.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAFA
oklch(93.6% 0.023 266.9)
-
Step 200
200
#CDD9F7
oklch(88.6% 0.043 268.2)
-
Step 300
300
#ABC0F4
oklch(81% 0.077 267.5)
-
Step 400
400
#7F9DEE
oklch(70.7% 0.124 267.7)
-
Step 500
500
#6082E9
oklch(63.1% 0.159 267.9)
-
Step 600
600
#4869D7
oklch(55.6% 0.173 267.8)
-
Step 700
700 (this color)
#334FB2
oklch(46.5% 0.161 267.7)
-
Step 800
800
#304897
oklch(42.8% 0.133 267.8)
-
Step 900
900
#2A3D78
oklch(37.7% 0.103 267.8)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#334FB2 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) | #005DB5 | 0.041 |
| Deuteranopia (no green cones) | #0051B0 | 0.031 |
| Tritanopia (no blue cones) | #006779 | 0.129 |
| Achromatopsia (no color) | #575757 | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334FB2
#334FB2
oklch(46.5% 0.161 267.7)
- #705500
#705500
oklch(46.5% 0.095 87.2)
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 #334FB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Blue #2242C7 ΔE 0.049
- Blueberry #464196 ΔE 0.058
- Majorelle Blue #3F37C9 ΔE 0.062
- Sapphire #2138AB ΔE 0.063
- Blue With A Hint Of Purple #533CC6 ΔE 0.064
- Dusk Blue #26538D ΔE 0.064
- Cobalt #1E488F ΔE 0.064
- Denim Blue #3B5B92 ΔE 0.066
Use #334FB2 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.