#377EA7#377EA7

#377EA7 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.6% C 0.095 H 237.2°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#377EA7
RGB	rgb(55, 126, 167)
HSL	hsl(202, 50%, 44%)
HSV	hsv(202, 67%, 65%)
CMYK	cmyk(67.1%, 24.6%, 0%, 34.5%)
CIE-LAB	lab(50.12, -8.89, -28.37)
CIE-LCH	lch(50.12, 29.73, 252.61°)
OKLab	oklab(56.6% -0.0514 -0.0797)
OKLCH	oklch(56.6% 0.095 237.2)
XYZ	xyz(16.0088, 18.5223, 39.2832)
Luminance	0.1852 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EA7 #A76037

analogous

#37A798 #377EA7 #3746A7

triadic

#377EA7 #A7377E #7EA737

tetradic

#377EA7 #9837A7 #A76037 #46A737

square

#377EA7 #9837A7 #A76037 #46A737

split-complementary

#377EA7 #A73746 #A79837

monochromatic

#19394B #285B79 #377EA7 #549DC7 #82B7D6

Accessibility & contrast

On white

4.46

#377EA7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#377EA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EA7

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EA7	#FFFFFF	#000000	##000000
##377EA7	1.00	4.46	4.70	4.70
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7DA9

Deuteranopia (green-blind)

#5B72A6

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377ea7;
/* rgb */ color: rgb(55, 126, 167);
/* oklch */ color: oklch(56.6% 0.095 237.2);

Tailwind

colors: {
  custom: {
    50: '#7aa3c1',
    500: '#377ea7',
    950: '#000000',
  },
}

SCSS

$custom: #377ea7;
$custom-light: #7aa3c1;
$custom-dark: #000000;

JSON

{
  "hex": "#377ea7",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 167
  },
  "hsl": {
    "h": 201.964,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.56599,
    "c": 0.09489,
    "h": 237.2
  },
  "luminance": 0.18524
}

Semantic roles & 50–950 ramp

primary

#377EA7

secondary

#C0947A

accent

#814EDA

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377EA7

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

Preview Lab → · Contrast checker → · Palette generator →