#3757A2#3757A2

#3757A2 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.2% C 0.127 H 264.6°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3757A2
RGB	rgb(55, 87, 162)
HSL	hsl(222, 49%, 43%)
HSV	hsv(222, 66%, 64%)
CMYK	cmyk(66%, 46.3%, 0%, 36.5%)
CIE-LAB	lab(38.26, 13.43, -44.15)
CIE-LCH	lch(38.26, 46.15, 286.92°)
OKLab	oklab(47.24% -0.0118 -0.1262)
OKLCH	oklch(47.24% 0.127 264.6)
XYZ	xyz(11.5031, 10.2362, 35.5450)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3757A2 #A28237

analogous

#378DA2 #3757A2 #4C37A2

triadic

#3757A2 #A23757 #57A237

tetradic

#3757A2 #A2378D #A28237 #37A24C

square

#3757A2 #A2378D #A28237 #37A24C

split-complementary

#3757A2 #A24C37 #8DA237

monochromatic

#182647 #273E74 #3757A2 #5274C4 #8099D4

Accessibility & contrast

On white

6.89

#3757A2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3757A2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3757A2

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3757A2	#FFFFFF	#000000	##FFFFFF
##3757A2	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#325FA5

Deuteranopia (green-blind)

#1F55A0

Tritanopia (blue-blind)

#006874

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3757a2;
/* rgb */ color: rgb(55, 87, 162);
/* oklch */ color: oklch(47.2% 0.127 264.6);

Tailwind

colors: {
  custom: {
    50: '#7985be',
    500: '#3757a2',
    950: '#000000',
  },
}

SCSS

$custom: #3757a2;
$custom-light: #7985be;
$custom-dark: #000000;

JSON

{
  "hex": "#3757a2",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 162
  },
  "hsl": {
    "h": 222.056,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.4724,
    "c": 0.12678,
    "h": 264.6
  },
  "luminance": 0.10237
}

Semantic roles & 50–950 ramp

primary

#3757A2

secondary

#BDA878

accent

#B04FD9

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3757A2

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

Preview Lab → · Contrast checker → · Palette generator →