#3774BE#3774BE

#3774BE is a mid, vivid cyan. Relative luminance 0.170; OKLCH L 55.5% C 0.132 H 254.8°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3774BE
RGB	rgb(55, 116, 190)
HSL	hsl(213, 55%, 48%)
HSV	hsv(213, 71%, 75%)
CMYK	cmyk(71.1%, 38.9%, 0%, 25.5%)
CIE-LAB	lab(48.28, 5.24, -44.58)
CIE-LCH	lch(48.28, 44.88, 276.71°)
OKLab	oklab(55.52% -0.0345 -0.127)
OKLCH	oklch(55.52% 0.132 254.8)
XYZ	xyz(17.1118, 17.0189, 51.0884)
Luminance	0.1702 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3774BE #BE8137

analogous

#37B7BE #3774BE #3E37BE

triadic

#3774BE #BE3774 #74BE37

tetradic

#3774BE #BE37B7 #BE8137 #37BE3E

square

#3774BE #BE37B7 #BE8137 #37BE3E

split-complementary

#3774BE #BE3E37 #B7BE37

monochromatic

#1C3A5F #29578F #3774BE #6194D1 #90B4DF

Accessibility & contrast

On white

4.77

#3774BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3774BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3774BE

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3774BE	#FFFFFF	#000000	##FFFFFF
##3774BE	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5279C1

Deuteranopia (green-blind)

#3D6DBD

Tritanopia (blue-blind)

#008590

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3774be;
/* rgb */ color: rgb(55, 116, 190);
/* oklch */ color: oklch(55.5% 0.132 254.8);

Tailwind

colors: {
  custom: {
    50: '#7e9bd2',
    500: '#3774be',
    950: '#000000',
  },
}

SCSS

$custom: #3774be;
$custom-light: #7e9bd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3774be",
  "rgb": {
    "r": 55,
    "g": 116,
    "b": 190
  },
  "hsl": {
    "h": 212.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.55524,
    "c": 0.13164,
    "h": 254.8
  },
  "luminance": 0.17021
}

Semantic roles & 50–950 ramp

primary

#3774BE

secondary

#CAAC87

accent

#9B49DE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3774BE

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

Preview Lab → · Contrast checker → · Palette generator →