#377FB6#377FB6

#377FB6 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.111 H 244.7°. Best body text is #000000 at 4.87:1 contrast (WCAG AA passes).

Color values

HEX	#377FB6
RGB	rgb(55, 127, 182)
HSL	hsl(206, 54%, 46%)
HSV	hsv(206, 70%, 71%)
CMYK	cmyk(69.8%, 30.2%, 0%, 28.6%)
CIE-LAB	lab(51.11, -4.26, -35.50)
CIE-LCH	lch(51.11, 35.75, 263.15°)
OKLab	oklab(57.61% -0.0475 -0.1004)
OKLCH	oklch(57.61% 0.111 244.7)
XYZ	xyz(17.6052, 19.3665, 47.0572)
Luminance	0.1937 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FB6 #B66E37

analogous

#37B6AE #377FB6 #3740B6

triadic

#377FB6 #B6377F #7FB637

tetradic

#377FB6 #AE37B6 #B66E37 #40B637

square

#377FB6 #AE37B6 #B66E37 #40B637

split-complementary

#377FB6 #B63740 #B6AE37

monochromatic

#1B3D58 #295E87 #377FB6 #5C9DCE #8BB9DC

Accessibility & contrast

On white

4.31

#377FB6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.87

#377FB6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FB6

4.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FB6	#FFFFFF	#000000	##000000
##377FB6	1.00	4.31	4.87	4.87
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.87	21.00	1.00	1.00
##000000	4.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6680B8

Deuteranopia (green-blind)

#5574B5

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #377fb6;
/* rgb */ color: rgb(55, 127, 182);
/* oklch */ color: oklch(57.6% 0.111 244.7);

Tailwind

colors: {
  custom: {
    50: '#7da3cc',
    500: '#377fb6',
    950: '#000000',
  },
}

SCSS

$custom: #377fb6;
$custom-light: #7da3cc;
$custom-dark: #000000;

JSON

{
  "hex": "#377fb6",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 182
  },
  "hsl": {
    "h": 205.984,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.57609,
    "c": 0.11105,
    "h": 244.7
  },
  "luminance": 0.19368
}

Semantic roles & 50–950 ramp

primary

#377FB6

secondary

#C6A082

accent

#8A4BDD

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #377FB6

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

Preview Lab → · Contrast checker → · Palette generator →