#377EA2#377EA2

#377EA2 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.4% C 0.090 H 233.6°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#377EA2
RGB	rgb(55, 126, 162)
HSL	hsl(200, 49%, 43%)
HSV	hsv(200, 66%, 64%)
CMYK	cmyk(66%, 22.2%, 0%, 36.5%)
CIE-LAB	lab(49.91, -10.59, -25.80)
CIE-LCH	lch(49.91, 27.89, 247.69°)
OKLab	oklab(56.36% -0.0532 -0.0723)
OKLCH	oklch(56.36% 0.09 233.6)
XYZ	xyz(15.5554, 18.3409, 36.8958)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EA2 #A25B37

analogous

#37A291 #377EA2 #3748A2

triadic

#377EA2 #A2377E #7EA237

tetradic

#377EA2 #9137A2 #A25B37 #48A237

square

#377EA2 #9137A2 #A25B37 #48A237

split-complementary

#377EA2 #A23748 #A29137

monochromatic

#183747 #275A74 #377EA2 #529EC4 #80B7D4

Accessibility & contrast

On white

4.50

#377EA2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#377EA2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EA2

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EA2	#FFFFFF	#000000	##000000
##377EA2	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7DA4

Deuteranopia (green-blind)

#5E72A1

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377ea2;
/* rgb */ color: rgb(55, 126, 162);
/* oklch */ color: oklch(56.4% 0.090 233.6);

Tailwind

colors: {
  custom: {
    50: '#7aa3bd',
    500: '#377ea2',
    950: '#000000',
  },
}

SCSS

$custom: #377ea2;
$custom-light: #7aa3bd;
$custom-dark: #000000;

JSON

{
  "hex": "#377ea2",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 162
  },
  "hsl": {
    "h": 200.187,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.56356,
    "c": 0.08981,
    "h": 233.6
  },
  "luminance": 0.18343
}

Semantic roles & 50–950 ramp

primary

#377EA2

secondary

#BD8F78

accent

#7D4FD9

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377EA2

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

Preview Lab → · Contrast checker → · Palette generator →