#377AAF#377AAF

#377AAF is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.1% C 0.107 H 245.3°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#377AAF
RGB	rgb(55, 122, 175)
HSL	hsl(207, 52%, 45%)
HSV	hsv(207, 69%, 69%)
CMYK	cmyk(68.6%, 30.3%, 0%, 31.4%)
CIE-LAB	lab(49.28, -3.77, -34.33)
CIE-LCH	lch(49.28, 34.53, 263.73°)
OKLab	oklab(56.06% -0.0446 -0.097)
OKLCH	oklch(56.06% 0.107 245.3)
XYZ	xyz(16.2700, 17.8247, 43.1322)
Luminance	0.1783 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AAF #AF6C37

analogous

#37AFA8 #377AAF #373EAF

triadic

#377AAF #AF377A #7AAF37

tetradic

#377AAF #A837AF #AF6C37 #3EAF37

square

#377AAF #A837AF #AF6C37 #3EAF37

split-complementary

#377AAF #AF373E #AFA837

monochromatic

#1A3952 #285A80 #377AAF #5998CB #87B5D9

Accessibility & contrast

On white

4.60

#377AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#377AAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377AAF

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AAF	#FFFFFF	#000000	##FFFFFF
##377AAF	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB1

Deuteranopia (green-blind)

#5270AE

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377aaf;
/* rgb */ color: rgb(55, 122, 175);
/* oklch */ color: oklch(56.1% 0.107 245.3);

Tailwind

colors: {
  custom: {
    50: '#7ba0c7',
    500: '#377aaf',
    950: '#000000',
  },
}

SCSS

$custom: #377aaf;
$custom-light: #7ba0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#377aaf",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 175
  },
  "hsl": {
    "h": 206.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56055,
    "c": 0.10678,
    "h": 245.3
  },
  "luminance": 0.17826
}

Semantic roles & 50–950 ramp

primary

#377AAF

secondary

#C39D7F

accent

#8C4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #377AAF

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

Preview Lab → · Contrast checker → · Palette generator →