#377AC4#377AC4

#377AC4 is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.2% C 0.133 H 253.1°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#377AC4
RGB	rgb(55, 122, 196)
HSL	hsl(211, 56%, 49%)
HSV	hsv(211, 72%, 77%)
CMYK	cmyk(71.9%, 37.8%, 0%, 23.1%)
CIE-LAB	lab(50.35, 3.74, -44.74)
CIE-LCH	lch(50.35, 44.89, 274.78°)
OKLab	oklab(57.24% -0.0387 -0.1274)
OKLCH	oklch(57.24% 0.133 253.1)
XYZ	xyz(18.4952, 18.7148, 54.8514)
Luminance	0.1872 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC4 #C48137

analogous

#37C1C4 #377AC4 #3A37C4

triadic

#377AC4 #C4377A #7AC437

tetradic

#377AC4 #C437C1 #C48137 #37C43A

square

#377AC4 #C437C1 #C48137 #37C43A

split-complementary

#377AC4 #C43A37 #C1C437

monochromatic

#1C3F64 #2A5C94 #377AC4 #6599D4 #94B9E1

Accessibility & contrast

On white

4.43

#377AC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#377AC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC4

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC4	#FFFFFF	#000000	##000000
##377AC4	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587FC7

Deuteranopia (green-blind)

#4372C3

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ac4;
/* rgb */ color: rgb(55, 122, 196);
/* oklch */ color: oklch(57.2% 0.133 253.1);

Tailwind

colors: {
  custom: {
    50: '#7fa0d6',
    500: '#377ac4',
    950: '#000000',
  },
}

SCSS

$custom: #377ac4;
$custom-light: #7fa0d6;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac4",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 196
  },
  "hsl": {
    "h": 211.489,
    "s": 56.175,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57244,
    "c": 0.13316,
    "h": 253.1
  },
  "luminance": 0.18717
}

Semantic roles & 50–950 ramp

primary

#377AC4

secondary

#CCAD8B

accent

#9848DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377AC4

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

Preview Lab → · Contrast checker → · Palette generator →