#377AC3#377AC3

#377AC3 is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.2% C 0.132 H 252.8°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#377AC3
RGB	rgb(55, 122, 195)
HSL	hsl(211, 56%, 49%)
HSV	hsv(211, 72%, 76%)
CMYK	cmyk(71.8%, 37.4%, 0%, 23.5%)
CIE-LAB	lab(50.30, 3.38, -44.25)
CIE-LCH	lch(50.30, 44.38, 274.37°)
OKLab	oklab(57.18% -0.039 -0.126)
OKLCH	oklch(57.18% 0.132 252.8)
XYZ	xyz(18.3817, 18.6694, 54.2540)
Luminance	0.1867 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC3 #C38037

analogous

#37C0C3 #377AC3 #3A37C3

triadic

#377AC3 #C3377A #7AC337

tetradic

#377AC3 #C337C0 #C38037 #37C33A

square

#377AC3 #C337C0 #C38037 #37C33A

split-complementary

#377AC3 #C33A37 #C0C337

monochromatic

#1C3E64 #2A5C93 #377AC3 #6499D3 #94B9E1

Accessibility & contrast

On white

4.44

#377AC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#377AC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC3

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC3	#FFFFFF	#000000	##000000
##377AC3	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#597FC6

Deuteranopia (green-blind)

#4472C2

Tritanopia (blue-blind)

#008B95

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ac3;
/* rgb */ color: rgb(55, 122, 195);
/* oklch */ color: oklch(57.2% 0.132 252.8);

Tailwind

colors: {
  custom: {
    50: '#7fa0d5',
    500: '#377ac3',
    950: '#000000',
  },
}

SCSS

$custom: #377ac3;
$custom-light: #7fa0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac3",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 195
  },
  "hsl": {
    "h": 211.286,
    "s": 56,
    "l": 49.02
  },
  "oklch": {
    "l": 0.57184,
    "c": 0.13188,
    "h": 252.8
  },
  "luminance": 0.18671
}

Semantic roles & 50–950 ramp

primary

#377AC3

secondary

#CCAC8A

accent

#9749DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377AC3

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

Preview Lab → · Contrast checker → · Palette generator →