#377DA3#377DA3

#377DA3 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.091 H 235.4°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#377DA3
RGB	rgb(55, 125, 163)
HSL	hsl(201, 50%, 43%)
HSV	hsv(201, 66%, 64%)
CMYK	cmyk(66.3%, 23.3%, 0%, 36.1%)
CIE-LAB	lab(49.64, -9.67, -26.79)
CIE-LCH	lch(49.64, 28.48, 250.14°)
OKLab	oklab(56.16% -0.0518 -0.0752)
OKLCH	oklch(56.16% 0.091 235.4)
XYZ	xyz(15.5175, 18.1222, 37.3234)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA3 #A35D37

analogous

#37A393 #377DA3 #3747A3

triadic

#377DA3 #A3377D #7DA337

tetradic

#377DA3 #9337A3 #A35D37 #47A337

square

#377DA3 #9337A3 #A35D37 #47A337

split-complementary

#377DA3 #A33747 #A39337

monochromatic

#183747 #285A75 #377DA3 #529DC5 #80B7D4

Accessibility & contrast

On white

4.54

#377DA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#377DA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA3

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA3	#FFFFFF	#000000	##000000
##377DA3	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7CA5

Deuteranopia (green-blind)

#5C71A2

Tritanopia (blue-blind)

#00878A

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377da3;
/* rgb */ color: rgb(55, 125, 163);
/* oklch */ color: oklch(56.2% 0.091 235.4);

Tailwind

colors: {
  custom: {
    50: '#7aa2be',
    500: '#377da3',
    950: '#000000',
  },
}

SCSS

$custom: #377da3;
$custom-light: #7aa2be;
$custom-dark: #000000;

JSON

{
  "hex": "#377da3",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 163
  },
  "hsl": {
    "h": 201.111,
    "s": 49.541,
    "l": 42.745
  },
  "oklch": {
    "l": 0.56161,
    "c": 0.0913,
    "h": 235.4
  },
  "luminance": 0.18124
}

Semantic roles & 50–950 ramp

primary

#377DA3

secondary

#BE9178

accent

#7F4FD9

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA3

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

Preview Lab → · Contrast checker → · Palette generator →