#377DC5#377DC5

#377DC5 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.131 H 251.7°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#377DC5
RGB	rgb(55, 125, 197)
HSL	hsl(210, 56%, 49%)
HSV	hsv(210, 72%, 77%)
CMYK	cmyk(72.1%, 36.5%, 0%, 22.7%)
CIE-LAB	lab(51.28, 2.28, -43.84)
CIE-LCH	lch(51.28, 43.90, 272.98°)
OKLab	oklab(57.99% -0.0413 -0.1247)
OKLCH	oklch(57.99% 0.131 251.7)
XYZ	xyz(18.9834, 19.5086, 55.5776)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DC5 #C57F37

analogous

#37C4C5 #377DC5 #3837C5

triadic

#377DC5 #C5377D #7DC537

tetradic

#377DC5 #C537C4 #C57F37 #37C538

square

#377DC5 #C537C4 #C57F37 #37C538

split-complementary

#377DC5 #C53837 #C4C537

monochromatic

#1C4065 #2A5F95 #377DC5 #659CD4 #95BBE1

Accessibility & contrast

On white

4.28

#377DC5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#377DC5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DC5

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DC5	#FFFFFF	#000000	##000000
##377DC5	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C81C8

Deuteranopia (green-blind)

#4774C4

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377dc5;
/* rgb */ color: rgb(55, 125, 197);
/* oklch */ color: oklch(58.0% 0.131 251.7);

Tailwind

colors: {
  custom: {
    50: '#7fa2d7',
    500: '#377dc5',
    950: '#000000',
  },
}

SCSS

$custom: #377dc5;
$custom-light: #7fa2d7;
$custom-dark: #000000;

JSON

{
  "hex": "#377dc5",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 197
  },
  "hsl": {
    "h": 210.423,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57985,
    "c": 0.13141,
    "h": 251.7
  },
  "luminance": 0.19511
}

Semantic roles & 50–950 ramp

primary

#377DC5

secondary

#CDAC8B

accent

#9548E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #377DC5

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

Preview Lab → · Contrast checker → · Palette generator →