#377BC2#377BC2

#377BC2 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.130 H 251.9°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#377BC2
RGB	rgb(55, 123, 194)
HSL	hsl(211, 56%, 49%)
HSV	hsv(211, 72%, 76%)
CMYK	cmyk(71.6%, 36.6%, 0%, 23.9%)
CIE-LAB	lab(50.54, 2.41, -43.30)
CIE-LCH	lch(50.54, 43.37, 273.19°)
OKLab	oklab(57.35% -0.0402 -0.1232)
OKLCH	oklch(57.35% 0.13 251.9)
XYZ	xyz(18.3925, 18.8712, 53.7016)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377BC2 #C27E37

analogous

#37C1C2 #377BC2 #3837C2

triadic

#377BC2 #C2377B #7BC237

tetradic

#377BC2 #C237C1 #C27E37 #37C238

square

#377BC2 #C237C1 #C27E37 #37C238

split-complementary

#377BC2 #C23837 #C1C237

monochromatic

#1C3F63 #295D92 #377BC2 #639AD3 #93B9E0

Accessibility & contrast

On white

4.40

#377BC2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#377BC2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377BC2

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377BC2	#FFFFFF	#000000	##000000
##377BC2	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7FC5

Deuteranopia (green-blind)

#4672C1

Tritanopia (blue-blind)

#008C95

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377bc2;
/* rgb */ color: rgb(55, 123, 194);
/* oklch */ color: oklch(57.4% 0.130 251.9);

Tailwind

colors: {
  custom: {
    50: '#7fa0d5',
    500: '#377bc2',
    950: '#000000',
  },
}

SCSS

$custom: #377bc2;
$custom-light: #7fa0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377bc2",
  "rgb": {
    "r": 55,
    "g": 123,
    "b": 194
  },
  "hsl": {
    "h": 210.647,
    "s": 55.823,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57353,
    "c": 0.12957,
    "h": 251.9
  },
  "luminance": 0.18873
}

Semantic roles & 50–950 ramp

primary

#377BC2

secondary

#CBAB89

accent

#9649DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377BC2

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

Preview Lab → · Contrast checker → · Palette generator →