#3359B1#3359B1

#3359B1 is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.5% C 0.147 H 264.1°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#3359B1
RGB	rgb(51, 89, 177)
HSL	hsl(222, 55%, 45%)
HSV	hsv(222, 71%, 69%)
CMYK	cmyk(71.2%, 49.7%, 0%, 30.6%)
CIE-LAB	lab(39.62, 17.03, -50.88)
CIE-LCH	lch(39.62, 53.66, 288.50°)
OKLab	oklab(48.54% -0.015 -0.1461)
OKLCH	oklch(48.54% 0.147 264.1)
XYZ	xyz(12.8706, 11.0216, 43.0355)
Luminance	0.1102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3359B1 #B18B33

analogous

#3398B1 #3359B1 #4C33B1

triadic

#3359B1 #B13359 #59B133

tetradic

#3359B1 #B13398 #B18B33 #33B14C

square

#3359B1 #B13398 #B18B33 #33B14C

split-complementary

#3359B1 #B14C33 #98B133

monochromatic

#182952 #254181 #3359B1 #5478CE #839EDB

Accessibility & contrast

On white

6.55

#3359B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#3359B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3359B1

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3359B1	#FFFFFF	#000000	##FFFFFF
##3359B1	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2763B4

Deuteranopia (green-blind)

#0058AF

Tritanopia (blue-blind)

#006E7C

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3359b1;
/* rgb */ color: rgb(51, 89, 177);
/* oklch */ color: oklch(48.5% 0.147 264.1);

Tailwind

colors: {
  custom: {
    50: '#7a87c9',
    500: '#3359b1',
    950: '#000000',
  },
}

SCSS

$custom: #3359b1;
$custom-light: #7a87c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3359b1",
  "rgb": {
    "r": 51,
    "g": 89,
    "b": 177
  },
  "hsl": {
    "h": 221.905,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.48537,
    "c": 0.14684,
    "h": 264.1
  },
  "luminance": 0.11023
}

Semantic roles & 50–950 ramp

primary

#3359B1

secondary

#C5AE7B

accent

#B249DF

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3359B1

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →