#3377B0#3377B0

#3377B0 is a mid, moderate cyan. Relative luminance 0.170; OKLCH L 55.3% C 0.112 H 247.0°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3377B0
RGB	rgb(51, 119, 176)
HSL	hsl(207, 55%, 45%)
HSV	hsv(207, 71%, 69%)
CMYK	cmyk(71%, 32.4%, 0%, 31%)
CIE-LAB	lab(48.30, -2.25, -36.47)
CIE-LCH	lch(48.30, 36.53, 266.47°)
OKLab	oklab(55.26% -0.0439 -0.1033)
OKLCH	oklch(55.26% 0.112 247)
XYZ	xyz(15.7956, 17.0303, 43.5206)
Luminance	0.1703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3377B0 #B06C33

analogous

#33B0AB #3377B0 #3339B0

triadic

#3377B0 #B03377 #77B033

tetradic

#3377B0 #AB33B0 #B06C33 #39B033

square

#3377B0 #AB33B0 #B06C33 #39B033

split-complementary

#3377B0 #B03339 #B0AB33

monochromatic

#183751 #255781 #3377B0 #5395CD #82B3DB

Accessibility & contrast

On white

4.77

#3377B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3377B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3377B0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3377B0	#FFFFFF	#000000	##FFFFFF
##3377B0	1.00	4.77	4.41	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D79B2

Deuteranopia (green-blind)

#4C6DAF

Tritanopia (blue-blind)

#00858B

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3377b0;
/* rgb */ color: rgb(51, 119, 176);
/* oklch */ color: oklch(55.3% 0.112 247.0);

Tailwind

colors: {
  custom: {
    50: '#7a9ec8',
    500: '#3377b0',
    950: '#000000',
  },
}

SCSS

$custom: #3377b0;
$custom-light: #7a9ec8;
$custom-dark: #000000;

JSON

{
  "hex": "#3377b0",
  "rgb": {
    "r": 51,
    "g": 119,
    "b": 176
  },
  "hsl": {
    "h": 207.36,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55257,
    "c": 0.11223,
    "h": 247
  },
  "luminance": 0.17032
}

Semantic roles & 50–950 ramp

primary

#3377B0

secondary

#C49C7B

accent

#8D49DE

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #3377B0

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

Preview Lab → · Contrast checker → · Palette generator →