#2377BC#2377BC

#2377BC is a mid, vivid cyan. Relative luminance 0.172; OKLCH L 55.5% C 0.132 H 248.2°. Best body text is #FFFFFF at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#2377BC
RGB	rgb(35, 119, 188)
HSL	hsl(207, 69%, 44%)
HSV	hsv(207, 81%, 74%)
CMYK	cmyk(81.4%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(48.49, 0.20, -43.14)
CIE-LCH	lch(48.49, 43.14, 270.26°)
OKLab	oklab(55.48% -0.0491 -0.123)
OKLCH	oklch(55.48% 0.132 248.2)
XYZ	xyz(16.3636, 17.1798, 50.0208)
Luminance	0.1718 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2377BC #BC6823

analogous

#23BCB4 #2377BC #232ABC

triadic

#2377BC #BC2377 #77BC23

tetradic

#2377BC #B423BC #BC6823 #2ABC23

square

#2377BC #B423BC #BC6823 #2ABC23

split-complementary

#2377BC #BC232A #BCB423

monochromatic

#103655 #195688 #2377BC #4196DC #74B2E5

Accessibility & contrast

On white

4.73

#2377BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.44

#2377BC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2377BC

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2377BC	#FFFFFF	#000000	##FFFFFF
##2377BC	1.00	4.73	4.44	4.73
#FFFFFF	4.73	1.00	21.00	1.00
#000000	4.44	21.00	1.00	21.00
##FFFFFF	4.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#567BBF

Deuteranopia (green-blind)

#3F6DBB

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #2377bc;
/* rgb */ color: rgb(35, 119, 188);
/* oklch */ color: oklch(55.5% 0.132 248.2);

Tailwind

colors: {
  custom: {
    50: '#779dd0',
    500: '#2377bc',
    950: '#000000',
  },
}

SCSS

$custom: #2377bc;
$custom-light: #779dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#2377bc",
  "rgb": {
    "r": 35,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 207.059,
    "s": 68.61,
    "l": 43.725
  },
  "oklch": {
    "l": 0.55485,
    "c": 0.13243,
    "h": 248.2
  },
  "luminance": 0.17182
}

Semantic roles & 50–950 ramp

primary

#2377BC

secondary

#CC996F

accent

#8B3CEB

background

#F7F9FC

surface

#EEF2F9

border

#C9CCD2

text

#0A0E14

muted

#7C7E82

Preview Lab

Preview with #2377BC

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

Preview Lab → · Contrast checker → · Palette generator →