#3377B1#3377B1

#3377B1 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 55.3% C 0.113 H 247.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3377B1
RGB	rgb(51, 119, 177)
HSL	hsl(208, 55%, 45%)
HSV	hsv(208, 71%, 69%)
CMYK	cmyk(71.2%, 32.8%, 0%, 30.6%)
CIE-LAB	lab(48.35, -1.89, -36.97)
CIE-LCH	lch(48.35, 37.02, 267.07°)
OKLab	oklab(55.31% -0.0436 -0.1048)
OKLCH	oklch(55.31% 0.113 247.4)
XYZ	xyz(15.8949, 17.0700, 44.0436)
Luminance	0.1707 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B1 #B16D33

analogous

#33B1AC #3377B1 #3338B1

triadic

#3377B1 #B13377 #77B133

tetradic

#3377B1 #AC33B1 #B16D33 #38B133

square

#3377B1 #AC33B1 #B16D33 #38B133

split-complementary

#3377B1 #B13338 #B1AC33

monochromatic

#183752 #255781 #3377B1 #5495CE #83B3DB

Accessibility & contrast

On white

4.76

#3377B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3377B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B1

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B1	#FFFFFF	#000000	##FFFFFF
##3377B1	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D79B3

Deuteranopia (green-blind)

#4B6DB0

Tritanopia (blue-blind)

#00858C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3377b1;
/* rgb */ color: rgb(51, 119, 177);
/* oklch */ color: oklch(55.3% 0.113 247.4);

Tailwind

colors: {
  custom: {
    50: '#7a9ec8',
    500: '#3377b1',
    950: '#000000',
  },
}

SCSS

$custom: #3377b1;
$custom-light: #7a9ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b1",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 177
  },
  "hsl": {
    "h": 207.619,
    "s": 55.263,
    "l": 44.706
  },
  "oklch": {
    "l": 0.55313,
    "c": 0.11347,
    "h": 247.4
  },
  "luminance": 0.17072
}

Semantic roles & 50–950 ramp

primary

#3377B1

secondary

#C59D7B

accent

#8E49DF

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3377B1

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

Preview Lab → · Contrast checker → · Palette generator →