#377EA6#377EA6

#377EA6 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.5% C 0.094 H 236.5°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#377EA6
RGB	rgb(55, 126, 166)
HSL	hsl(202, 50%, 43%)
HSV	hsv(202, 67%, 65%)
CMYK	cmyk(66.9%, 24.1%, 0%, 34.9%)
CIE-LAB	lab(50.08, -9.23, -27.86)
CIE-LCH	lch(50.08, 29.35, 251.67°)
OKLab	oklab(56.55% -0.0518 -0.0782)
OKLCH	oklch(56.55% 0.094 236.5)
XYZ	xyz(15.9167, 18.4854, 38.7982)
Luminance	0.1849 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377EA6 #A65F37

analogous

#37A696 #377EA6 #3746A6

triadic

#377EA6 #A6377E #7EA637

tetradic

#377EA6 #9637A6 #A65F37 #46A637

square

#377EA6 #9637A6 #A65F37 #46A637

split-complementary

#377EA6 #A63746 #A69637

monochromatic

#19384A #285B78 #377EA6 #549DC6 #82B7D6

Accessibility & contrast

On white

4.47

#377EA6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#377EA6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377EA6

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377EA6	#FFFFFF	#000000	##000000
##377EA6	1.00	4.47	4.70	4.70
#FFFFFF	4.47	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)

#6B7DA8

Deuteranopia (green-blind)

#5C72A5

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377ea6;
/* rgb */ color: rgb(55, 126, 166);
/* oklch */ color: oklch(56.5% 0.094 236.5);

Tailwind

colors: {
  custom: {
    50: '#7aa3c0',
    500: '#377ea6',
    950: '#000000',
  },
}

SCSS

$custom: #377ea6;
$custom-light: #7aa3c0;
$custom-dark: #000000;

JSON

{
  "hex": "#377ea6",
  "rgb": {
    "r": 55,
    "g": 126,
    "b": 166
  },
  "hsl": {
    "h": 201.622,
    "s": 50.226,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5655,
    "c": 0.09384,
    "h": 236.5
  },
  "luminance": 0.18487
}

Semantic roles & 50–950 ramp

primary

#377EA6

secondary

#BF937A

accent

#804EDA

background

#F7FAFB

surface

#EEF3F7

border

#C9CDD0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377EA6

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

Preview Lab → · Contrast checker → · Palette generator →