#377DBD#377DBD

#377DBD is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.121 H 249.0°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#377DBD
RGB	rgb(55, 125, 189)
HSL	hsl(209, 55%, 48%)
HSV	hsv(209, 71%, 74%)
CMYK	cmyk(70.9%, 33.9%, 0%, 25.9%)
CIE-LAB	lab(50.86, -0.59, -39.91)
CIE-LCH	lch(50.86, 39.92, 269.15°)
OKLab	oklab(57.53% -0.0435 -0.1132)
OKLCH	oklch(57.53% 0.121 249)
XYZ	xyz(18.0910, 19.1516, 50.8774)
Luminance	0.1915 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DBD #BD7737

analogous

#37BDBA #377DBD #373ABD

triadic

#377DBD #BD377D #7DBD37

tetradic

#377DBD #BA37BD #BD7737 #3ABD37

square

#377DBD #BA37BD #BD7737 #3ABD37

split-complementary

#377DBD #BD373A #BDBA37

monochromatic

#1B3E5E #295E8E #377DBD #609BD1 #90B9DF

Accessibility & contrast

On white

4.35

#377DBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#377DBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DBD

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DBD	#FFFFFF	#000000	##000000
##377DBD	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C0

Deuteranopia (green-blind)

#4D73BC

Tritanopia (blue-blind)

#008C94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #377dbd;
/* rgb */ color: rgb(55, 125, 189);
/* oklch */ color: oklch(57.5% 0.121 249.0);

Tailwind

colors: {
  custom: {
    50: '#7ea2d1',
    500: '#377dbd',
    950: '#000000',
  },
}

SCSS

$custom: #377dbd;
$custom-light: #7ea2d1;
$custom-dark: #000000;

JSON

{
  "hex": "#377dbd",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 189
  },
  "hsl": {
    "h": 208.657,
    "s": 54.918,
    "l": 47.843
  },
  "oklch": {
    "l": 0.57526,
    "c": 0.12131,
    "h": 249
  },
  "luminance": 0.19154
}

Semantic roles & 50–950 ramp

primary

#377DBD

secondary

#C9A686

accent

#914ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F14

muted

#7C7E82

Preview Lab

Preview with #377DBD

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

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