#3758A7#3758A7

#3758A7 is a mid, vivid blue. Relative luminance 0.106; OKLCH L 47.8% C 0.133 H 264.8°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#3758A7
RGB	rgb(55, 88, 167)
HSL	hsl(222, 50%, 44%)
HSV	hsv(222, 67%, 65%)
CMYK	cmyk(67.1%, 47.3%, 0%, 34.5%)
CIE-LAB	lab(38.86, 14.61, -46.17)
CIE-LCH	lch(38.86, 48.42, 287.56°)
OKLab	oklab(47.8% -0.012 -0.1321)
OKLCH	oklch(47.8% 0.133 264.8)
XYZ	xyz(12.0379, 10.5805, 37.9596)
Luminance	0.1058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3758A7 #A78637

analogous

#3790A7 #3758A7 #4E37A7

triadic

#3758A7 #A73758 #58A737

tetradic

#3758A7 #A73790 #A78637 #37A74E

square

#3758A7 #A73790 #A78637 #37A74E

split-complementary

#3758A7 #A74E37 #90A737

monochromatic

#19274B #284079 #3758A7 #5476C7 #829BD6

Accessibility & contrast

On white

6.74

#3758A7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#3758A7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3758A7

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3758A7	#FFFFFF	#000000	##FFFFFF
##3758A7	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3061AA

Deuteranopia (green-blind)

#1957A5

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3758a7;
/* rgb */ color: rgb(55, 88, 167);
/* oklch */ color: oklch(47.8% 0.133 264.8);

Tailwind

colors: {
  custom: {
    50: '#7a86c2',
    500: '#3758a7',
    950: '#000000',
  },
}

SCSS

$custom: #3758a7;
$custom-light: #7a86c2;
$custom-dark: #000000;

JSON

{
  "hex": "#3758a7",
  "rgb": {
    "r": 55,
    "g": 88,
    "b": 167
  },
  "hsl": {
    "h": 222.321,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47803,
    "c": 0.13268,
    "h": 264.8
  },
  "luminance": 0.10582
}

Semantic roles & 50–950 ramp

primary

#3758A7

secondary

#C0AB7A

accent

#B14EDA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #3758A7

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

Preview Lab → · Contrast checker → · Palette generator →