#3759CA#3759CA

#3759CA is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.6% C 0.180 H 267.0°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3759CA
RGB	rgb(55, 89, 202)
HSL	hsl(226, 58%, 50%)
HSV	hsv(226, 73%, 79%)
CMYK	cmyk(72.8%, 55.9%, 0%, 20.8%)
CIE-LAB	lab(41.56, 26.83, -62.31)
CIE-LCH	lch(41.56, 67.84, 293.30°)
OKLab	oklab(50.62% -0.0094 -0.1796)
OKLCH	oklch(50.62% 0.18 267)
XYZ	xyz(15.8049, 12.2196, 57.3913)
Luminance	0.1222 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759CA #CAA837

analogous

#37A3CA #3759CA #5E37CA

triadic

#3759CA #CA3759 #59CA37

tetradic

#3759CA #CA37A3 #CAA837 #37CA5E

square

#3759CA #CA37A3 #CAA837 #37CA5E

split-complementary

#3759CA #CA5E37 #A3CA37

monochromatic

#1C2E6A #29439B #3759CA #6781D7 #98A9E4

Accessibility & contrast

On white

6.10

#3759CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#3759CA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759CA

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759CA	#FFFFFF	#000000	##FFFFFF
##3759CA	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0069CE

Deuteranopia (green-blind)

#005CC8

Tritanopia (blue-blind)

#007589

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #3759ca;
/* rgb */ color: rgb(55, 89, 202);
/* oklch */ color: oklch(50.6% 0.180 267.0);

Tailwind

colors: {
  custom: {
    50: '#8187db',
    500: '#3759ca',
    950: '#000000',
  },
}

SCSS

$custom: #3759ca;
$custom-light: #8187db;
$custom-dark: #000000;

JSON

{
  "hex": "#3759ca",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 202
  },
  "hsl": {
    "h": 226.122,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5062,
    "c": 0.17986,
    "h": 267
  },
  "luminance": 0.12221
}

Semantic roles & 50–950 ramp

primary

#3759CA

secondary

#CFC08E

accent

#BE46E1

background

#F8F8FD

surface

#F0EFFB

border

#CBCAD4

text

#0C0B15

muted

#7D7C83

Preview Lab

Preview with #3759CA

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

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