#377DA5#377DA5

#377DA5 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.093 H 236.8°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#377DA5
RGB	rgb(55, 125, 165)
HSL	hsl(202, 50%, 43%)
HSV	hsv(202, 67%, 65%)
CMYK	cmyk(66.7%, 24.2%, 0%, 35.3%)
CIE-LAB	lab(49.73, -8.99, -27.82)
CIE-LCH	lch(49.73, 29.24, 252.09°)
OKLab	oklab(56.26% -0.0511 -0.0781)
OKLCH	oklch(56.26% 0.093 236.8)
XYZ	xyz(15.6981, 18.1944, 38.2746)
Luminance	0.1820 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DA5 #A55F37

analogous

#37A596 #377DA5 #3746A5

triadic

#377DA5 #A5377D #7DA537

tetradic

#377DA5 #9637A5 #A55F37 #46A537

square

#377DA5 #9637A5 #A55F37 #46A537

split-complementary

#377DA5 #A53746 #A59637

monochromatic

#183749 #285A77 #377DA5 #539CC6 #81B7D5

Accessibility & contrast

On white

4.53

#377DA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#377DA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DA5

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DA5	#FFFFFF	#000000	##000000
##377DA5	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7CA7

Deuteranopia (green-blind)

#5B71A4

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #377da5;
/* rgb */ color: rgb(55, 125, 165);
/* oklch */ color: oklch(56.3% 0.093 236.8);

Tailwind

colors: {
  custom: {
    50: '#7aa2c0',
    500: '#377da5',
    950: '#000000',
  },
}

SCSS

$custom: #377da5;
$custom-light: #7aa2c0;
$custom-dark: #000000;

JSON

{
  "hex": "#377da5",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 165
  },
  "hsl": {
    "h": 201.818,
    "s": 50,
    "l": 43.137
  },
  "oklch": {
    "l": 0.56259,
    "c": 0.09336,
    "h": 236.8
  },
  "luminance": 0.18196
}

Semantic roles & 50–950 ramp

primary

#377DA5

secondary

#BF9279

accent

#814EDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #377DA5

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

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