#377FA5#377FA5

#377FA5 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.7% C 0.092 H 234.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#377FA5
RGB	rgb(55, 127, 165)
HSL	hsl(201, 50%, 43%)
HSV	hsv(201, 67%, 65%)
CMYK	cmyk(66.7%, 23%, 0%, 35.3%)
CIE-LAB	lab(50.34, -10.14, -26.87)
CIE-LCH	lch(50.34, 28.72, 249.32°)
OKLab	oklab(56.74% -0.0532 -0.0754)
OKLCH	oklch(56.74% 0.092 234.8)
XYZ	xyz(15.9538, 18.7059, 38.3598)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377FA5 #A55D37

analogous

#37A594 #377FA5 #3748A5

triadic

#377FA5 #A5377F #7FA537

tetradic

#377FA5 #9437A5 #A55D37 #48A537

square

#377FA5 #9437A5 #A55D37 #48A537

split-complementary

#377FA5 #A53748 #A59437

monochromatic

#183849 #285C77 #377FA5 #539EC6 #81B8D5

Accessibility & contrast

On white

4.43

#377FA5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#377FA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377FA5

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377FA5	#FFFFFF	#000000	##000000
##377FA5	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D7EA7

Deuteranopia (green-blind)

#5E73A4

Tritanopia (blue-blind)

#00898C

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #377fa5;
/* rgb */ color: rgb(55, 127, 165);
/* oklch */ color: oklch(56.7% 0.092 234.8);

Tailwind

colors: {
  custom: {
    50: '#7aa4c0',
    500: '#377fa5',
    950: '#000000',
  },
}

SCSS

$custom: #377fa5;
$custom-light: #7aa4c0;
$custom-dark: #000000;

JSON

{
  "hex": "#377fa5",
  "rgb": {
    "r": 55,
    "g": 127,
    "b": 165
  },
  "hsl": {
    "h": 200.727,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.56744,
    "c": 0.0923,
    "h": 234.8
  },
  "luminance": 0.18708
}

Semantic roles & 50–950 ramp

primary

#377FA5

secondary

#BF9179

accent

#7E4EDA

background

#F7FAFB

surface

#EEF4F7

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #377FA5

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

Preview Lab → · Contrast checker → · Palette generator →