#377BAA#377BAA

#377BAA is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.100 H 241.8°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#377BAA
RGB	rgb(55, 123, 170)
HSL	hsl(205, 51%, 44%)
HSV	hsv(205, 68%, 67%)
CMYK	cmyk(67.6%, 27.6%, 0%, 33.3%)
CIE-LAB	lab(49.35, -6.11, -31.32)
CIE-LCH	lch(49.35, 31.91, 258.96°)
OKLab	oklab(56.03% -0.0472 -0.0883)
OKLCH	oklch(56.03% 0.1 241.8)
XYZ	xyz(15.9114, 17.8787, 40.6348)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377BAA #AA6637

analogous

#37AAA0 #377BAA #3742AA

triadic

#377BAA #AA377B #7BAA37

tetradic

#377BAA #A037AA #AA6637 #42AA37

square

#377BAA #A037AA #AA6637 #42AA37

split-complementary

#377BAA #AA3742 #AAA037

monochromatic

#19384E #285A7C #377BAA #569AC8 #84B5D7

Accessibility & contrast

On white

4.59

#377BAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#377BAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377BAA

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377BAA	#FFFFFF	#000000	##FFFFFF
##377BAA	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667CAC

Deuteranopia (green-blind)

#5670A9

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377baa;
/* rgb */ color: rgb(55, 123, 170);
/* oklch */ color: oklch(56.0% 0.100 241.8);

Tailwind

colors: {
  custom: {
    50: '#7ba1c3',
    500: '#377baa',
    950: '#000000',
  },
}

SCSS

$custom: #377baa;
$custom-light: #7ba1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#377baa",
  "rgb": {
    "r": 55,
    "g": 123,
    "b": 170
  },
  "hsl": {
    "h": 204.522,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.5603,
    "c": 0.10013,
    "h": 241.8
  },
  "luminance": 0.1788
}

Semantic roles & 50–950 ramp

primary

#377BAA

secondary

#C1987C

accent

#874DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #377BAA

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

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