#377DA9#377DA9

#377DA9 is a mid, moderate cyan. Relative luminance 0.183; OKLCH L 56.5% C 0.098 H 239.4°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#377DA9
RGB	rgb(55, 125, 169)
HSL	hsl(203, 51%, 44%)
HSV	hsv(203, 67%, 66%)
CMYK	cmyk(67.5%, 26%, 0%, 33.7%)
CIE-LAB	lab(49.91, -7.62, -29.87)
CIE-LCH	lch(49.91, 30.83, 255.68°)
OKLab	oklab(56.46% -0.0497 -0.0841)
OKLCH	oklch(56.46% 0.098 239.4)
XYZ	xyz(16.0678, 18.3423, 40.2221)
Luminance	0.1834 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA9 #A96337

analogous

#37A99C #377DA9 #3744A9

triadic

#377DA9 #A9377D #7DA937

tetradic

#377DA9 #9C37A9 #A96337 #44A937

square

#377DA9 #9C37A9 #A96337 #44A937

split-complementary

#377DA9 #A93744 #A99C37

monochromatic

#19394D #285B7B #377DA9 #559CC8 #84B7D7

Accessibility & contrast

On white

4.50

#377DA9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#377DA9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA9

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA9	#FFFFFF	#000000	##000000
##377DA9	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697DAB

Deuteranopia (green-blind)

#5972A8

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377da9;
/* rgb */ color: rgb(55, 125, 169);
/* oklch */ color: oklch(56.5% 0.098 239.4);

Tailwind

colors: {
  custom: {
    50: '#7ba2c2',
    500: '#377da9',
    950: '#000000',
  },
}

SCSS

$custom: #377da9;
$custom-light: #7ba2c2;
$custom-dark: #000000;

JSON

{
  "hex": "#377da9",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 169
  },
  "hsl": {
    "h": 203.158,
    "s": 50.893,
    "l": 43.922
  },
  "oklch": {
    "l": 0.56458,
    "c": 0.09765,
    "h": 239.4
  },
  "luminance": 0.18344
}

Semantic roles & 50–950 ramp

primary

#377DA9

secondary

#C0967B

accent

#844DDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA9

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

Preview Lab → · Contrast checker → · Palette generator →