#377FAA#377FAA

#377FAA is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.0% C 0.097 H 238.1°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#377FAA
RGB	rgb(55, 127, 170)
HSL	hsl(202, 51%, 44%)
HSV	hsv(202, 68%, 67%)
CMYK	cmyk(67.6%, 25.3%, 0%, 33.3%)
CIE-LAB	lab(50.56, -8.44, -29.43)
CIE-LCH	lch(50.56, 30.62, 254.01°)
OKLab	oklab(56.99% -0.0515 -0.0828)
OKLCH	oklch(56.99% 0.097 238.1)
XYZ	xyz(16.4178, 18.8915, 40.8036)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FAA #AA6237

analogous

#37AA9C #377FAA #3746AA

triadic

#377FAA #AA377F #7FAA37

tetradic

#377FAA #9C37AA #AA6237 #46AA37

square

#377FAA #9C37AA #AA6237 #46AA37

split-complementary

#377FAA #AA3746 #AA9C37

monochromatic

#193A4E #285C7C #377FAA #569EC8 #84B8D7

Accessibility & contrast

On white

4.39

#377FAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#377FAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FAA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FAA	#FFFFFF	#000000	##000000
##377FAA	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAC

Deuteranopia (green-blind)

#5B73A9

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377faa;
/* rgb */ color: rgb(55, 127, 170);
/* oklch */ color: oklch(57.0% 0.097 238.1);

Tailwind

colors: {
  custom: {
    50: '#7ba4c3',
    500: '#377faa',
    950: '#000000',
  },
}

SCSS

$custom: #377faa;
$custom-light: #7ba4c3;
$custom-dark: #000000;

JSON

{
  "hex": "#377faa",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 170
  },
  "hsl": {
    "h": 202.435,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56989,
    "c": 0.09749,
    "h": 238.1
  },
  "luminance": 0.18893
}

Semantic roles & 50–950 ramp

primary

#377FAA

secondary

#C1967C

accent

#824DDB

background

#F7FAFC

surface

#EEF3F8

border

#C9CDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FAA

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

Preview Lab → · Contrast checker → · Palette generator →