#377AC0#377AC0

#377AC0 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.0% C 0.128 H 251.9°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#377AC0
RGB	rgb(55, 122, 192)
HSL	hsl(211, 55%, 48%)
HSV	hsv(211, 71%, 75%)
CMYK	cmyk(71.4%, 36.5%, 0%, 24.7%)
CIE-LAB	lab(50.14, 2.30, -42.78)
CIE-LCH	lch(50.14, 42.84, 273.07°)
OKLab	oklab(57.01% -0.0398 -0.1217)
OKLCH	oklch(57.01% 0.128 251.9)
XYZ	xyz(18.0460, 18.5351, 52.4855)
Luminance	0.1854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC0 #C07D37

analogous

#37BEC0 #377AC0 #3837C0

triadic

#377AC0 #C0377A #7AC037

tetradic

#377AC0 #C037BE #C07D37 #37C038

square

#377AC0 #C037BE #C07D37 #37C038

split-complementary

#377AC0 #C03837 #BEC037

monochromatic

#1C3E61 #295C90 #377AC0 #6299D2 #92B8E0

Accessibility & contrast

On white

4.46

#377AC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#377AC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC0

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC0	#FFFFFF	#000000	##000000
##377AC0	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)

#5A7EC3

Deuteranopia (green-blind)

#4671BF

Tritanopia (blue-blind)

#008A94

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377ac0;
/* rgb */ color: rgb(55, 122, 192);
/* oklch */ color: oklch(57.0% 0.128 251.9);

Tailwind

colors: {
  custom: {
    50: '#7ea0d3',
    500: '#377ac0',
    950: '#000000',
  },
}

SCSS

$custom: #377ac0;
$custom-light: #7ea0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac0",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 192
  },
  "hsl": {
    "h": 210.657,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.57008,
    "c": 0.12801,
    "h": 251.9
  },
  "luminance": 0.18537
}

Semantic roles & 50–950 ramp

primary

#377AC0

secondary

#CBAA88

accent

#9649DF

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #377AC0

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

Preview Lab → · Contrast checker → · Palette generator →