#377AC9#377AC9

#377AC9 is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.5% C 0.140 H 254.4°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#377AC9
RGB	rgb(55, 122, 201)
HSL	hsl(212, 57%, 50%)
HSV	hsv(212, 73%, 79%)
CMYK	cmyk(72.6%, 39.3%, 0%, 21.2%)
CIE-LAB	lab(50.62, 5.56, -47.16)
CIE-LCH	lch(50.62, 47.49, 276.72°)
OKLab	oklab(57.55% -0.0375 -0.1345)
OKLCH	oklch(57.55% 0.14 254.4)
XYZ	xyz(19.0738, 18.9462, 57.8988)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AC9 #C98637

analogous

#37C3C9 #377AC9 #3D37C9

triadic

#377AC9 #C9377A #7AC937

tetradic

#377AC9 #C937C3 #C98637 #37C93D

square

#377AC9 #C937C3 #C98637 #37C93D

split-complementary

#377AC9 #C93D37 #C3C937

monochromatic

#1C4069 #295D99 #377AC9 #679AD6 #97BAE3

Accessibility & contrast

On white

4.38

#377AC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#377AC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AC9

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AC9	#FFFFFF	#000000	##000000
##377AC9	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5580CC

Deuteranopia (green-blind)

#3E72C7

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377ac9;
/* rgb */ color: rgb(55, 122, 201);
/* oklch */ color: oklch(57.5% 0.140 254.4);

Tailwind

colors: {
  custom: {
    50: '#80a0da',
    500: '#377ac9',
    950: '#000000',
  },
}

SCSS

$custom: #377ac9;
$custom-light: #80a0da;
$custom-dark: #000000;

JSON

{
  "hex": "#377ac9",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 201
  },
  "hsl": {
    "h": 212.466,
    "s": 57.48,
    "l": 50.196
  },
  "oklch": {
    "l": 0.57545,
    "c": 0.13965,
    "h": 254.4
  },
  "luminance": 0.18948
}

Semantic roles & 50–950 ramp

primary

#377AC9

secondary

#CFB18D

accent

#9A47E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #377AC9

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

Preview Lab → · Contrast checker → · Palette generator →