#377ABC#377ABC

#377ABC is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.123 H 250.6°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#377ABC
RGB	rgb(55, 122, 188)
HSL	hsl(210, 55%, 48%)
HSV	hsv(210, 71%, 74%)
CMYK	cmyk(70.7%, 35.1%, 0%, 26.3%)
CIE-LAB	lab(49.93, 0.85, -40.82)
CIE-LCH	lch(49.93, 40.82, 271.20°)
OKLab	oklab(56.78% -0.0408 -0.1159)
OKLCH	oklch(56.78% 0.123 250.6)
XYZ	xyz(17.6088, 18.3602, 50.1831)
Luminance	0.1836 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377ABC #BC7937

analogous

#37BCBB #377ABC #3738BC

triadic

#377ABC #BC377A #7ABC37

tetradic

#377ABC #BB37BC #BC7937 #38BC37

square

#377ABC #BB37BC #BC7937 #38BC37

split-complementary

#377ABC #BC3738 #BCBB37

monochromatic

#1B3D5D #295B8D #377ABC #6099D0 #8FB7DE

Accessibility & contrast

On white

4.49

#377ABC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.67

#377ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377ABC

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377ABC	#FFFFFF	#000000	##000000
##377ABC	1.00	4.49	4.67	4.67
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7EBF

Deuteranopia (green-blind)

#4971BB

Tritanopia (blue-blind)

#008A92

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377abc;
/* rgb */ color: rgb(55, 122, 188);
/* oklch */ color: oklch(56.8% 0.123 250.6);

Tailwind

colors: {
  custom: {
    50: '#7ea0d0',
    500: '#377abc',
    950: '#000000',
  },
}

SCSS

$custom: #377abc;
$custom-light: #7ea0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#377abc",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 188
  },
  "hsl": {
    "h": 209.774,
    "s": 54.733,
    "l": 47.647
  },
  "oklch": {
    "l": 0.56776,
    "c": 0.12291,
    "h": 250.6
  },
  "luminance": 0.18362
}

Semantic roles & 50–950 ramp

primary

#377ABC

secondary

#C9A786

accent

#934ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #377ABC

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

Preview Lab → · Contrast checker → · Palette generator →