#377FA0#377FA0

#377FA0 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.5% C 0.087 H 231.0°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#377FA0
RGB	rgb(55, 127, 160)
HSL	hsl(199, 49%, 42%)
HSV	hsv(199, 66%, 63%)
CMYK	cmyk(65.6%, 20.6%, 0%, 37.3%)
CIE-LAB	lab(50.13, -11.83, -24.29)
CIE-LCH	lch(50.13, 27.02, 244.04°)
OKLab	oklab(56.51% -0.0551 -0.068)
OKLCH	oklch(56.51% 0.087 231)
XYZ	xyz(15.5076, 18.5274, 36.0098)
Luminance	0.1853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FA0 #A05837

analogous

#37A08D #377FA0 #374BA0

triadic

#377FA0 #A0377F #7FA037

tetradic

#377FA0 #8D37A0 #A05837 #4BA037

square

#377FA0 #8D37A0 #A05837 #4BA037

split-complementary

#377FA0 #A0374B #A08D37

monochromatic

#183745 #275B72 #377FA0 #519FC3 #7FB8D3

Accessibility & contrast

On white

4.46

#377FA0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#377FA0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FA0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FA0	#FFFFFF	#000000	##000000
##377FA0	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7DA2

Deuteranopia (green-blind)

#6073A0

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377fa0;
/* rgb */ color: rgb(55, 127, 160);
/* oklch */ color: oklch(56.5% 0.087 231.0);

Tailwind

colors: {
  custom: {
    50: '#79a4bc',
    500: '#377fa0',
    950: '#000000',
  },
}

SCSS

$custom: #377fa0;
$custom-light: #79a4bc;
$custom-dark: #000000;

JSON

{
  "hex": "#377fa0",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 160
  },
  "hsl": {
    "h": 198.857,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.56505,
    "c": 0.08749,
    "h": 231
  },
  "luminance": 0.18529
}

Semantic roles & 50–950 ramp

primary

#377FA0

secondary

#BC8C77

accent

#7A4FD8

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FA0

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

Preview Lab → · Contrast checker → · Palette generator →