#3759AD#3759AD

#3759AD is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.4% C 0.140 H 265.0°. Best body text is #FFFFFF at 6.57:1 contrast (WCAG AA passes).

Color values

HEX	#3759AD
RGB	rgb(55, 89, 173)
HSL	hsl(223, 52%, 45%)
HSV	hsv(223, 68%, 68%)
CMYK	cmyk(68.2%, 48.6%, 0%, 32.2%)
CIE-LAB	lab(39.53, 16.16, -48.65)
CIE-LCH	lch(39.53, 51.26, 288.38°)
OKLab	oklab(48.44% -0.0121 -0.1394)
OKLCH	oklch(48.44% 0.14 265)
XYZ	xyz(12.6881, 10.9729, 40.9764)
Luminance	0.1097 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3759AD #AD8B37

analogous

#3794AD #3759AD #5037AD

triadic

#3759AD #AD3759 #59AD37

tetradic

#3759AD #AD3794 #AD8B37 #37AD50

square

#3759AD #AD3794 #AD8B37 #37AD50

split-complementary

#3759AD #AD5037 #94AD37

monochromatic

#192950 #28417F #3759AD #5778CA #869ED8

Accessibility & contrast

On white

6.57

#3759AD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#3759AD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3759AD

6.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3759AD	#FFFFFF	#000000	##FFFFFF
##3759AD	1.00	6.57	3.19	6.57
#FFFFFF	6.57	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C63B0

Deuteranopia (green-blind)

#0F58AB

Tritanopia (blue-blind)

#006D7A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3759ad;
/* rgb */ color: rgb(55, 89, 173);
/* oklch */ color: oklch(48.4% 0.140 265.0);

Tailwind

colors: {
  custom: {
    50: '#7b87c6',
    500: '#3759ad',
    950: '#000000',
  },
}

SCSS

$custom: #3759ad;
$custom-light: #7b87c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3759ad",
  "rgb": {
    "r": 55,
    "g": 89,
    "b": 173
  },
  "hsl": {
    "h": 222.712,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4844,
    "c": 0.13994,
    "h": 265
  },
  "luminance": 0.10974
}

Semantic roles & 50–950 ramp

primary

#3759AD

secondary

#C2AE7D

accent

#B24DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3759AD

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

Preview Lab → · Contrast checker → · Palette generator →