#377AC7#377AC7

#377AC7 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.4% C 0.137 H 253.9°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#377AC7
RGB	rgb(55, 122, 199)
HSL	hsl(212, 57%, 50%)
HSV	hsv(212, 72%, 78%)
CMYK	cmyk(72.4%, 38.7%, 0%, 22%)
CIE-LAB	lab(50.51, 4.83, -46.20)
CIE-LCH	lch(50.51, 46.45, 275.97°)
OKLab	oklab(57.42% -0.038 -0.1317)
OKLCH	oklch(57.42% 0.137 253.9)
XYZ	xyz(18.8401, 18.8527, 56.6678)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC7 #C78437

analogous

#37C2C7 #377AC7 #3C37C7

triadic

#377AC7 #C7377A #7AC737

tetradic

#377AC7 #C737C2 #C78437 #37C73C

square

#377AC7 #C737C2 #C78437 #37C73C

split-complementary

#377AC7 #C73C37 #C2C737

monochromatic

#1C3F67 #2A5D97 #377AC7 #669AD5 #96BAE2

Accessibility & contrast

On white

4.40

#377AC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#377AC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC7

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC7	#FFFFFF	#000000	##000000
##377AC7	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)

#5680CA

Deuteranopia (green-blind)

#4072C5

Tritanopia (blue-blind)

#008C97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ac7;
/* rgb */ color: rgb(55, 122, 199);
/* oklch */ color: oklch(57.4% 0.137 253.9);

Tailwind

colors: {
  custom: {
    50: '#80a0d8',
    500: '#377ac7',
    950: '#000000',
  },
}

SCSS

$custom: #377ac7;
$custom-light: #80a0d8;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac7",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 199
  },
  "hsl": {
    "h": 212.083,
    "s": 56.693,
    "l": 49.804
  },
  "oklch": {
    "l": 0.57424,
    "c": 0.13705,
    "h": 253.9
  },
  "luminance": 0.18855
}

Semantic roles & 50–950 ramp

primary

#377AC7

secondary

#CDAF8C

accent

#9948E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377AC7

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

Preview Lab → · Contrast checker → · Palette generator →