#377DAD#377DAD

#377DAD is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.7% C 0.102 H 241.7°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#377DAD
RGB	rgb(55, 125, 173)
HSL	hsl(204, 52%, 45%)
HSV	hsv(204, 68%, 68%)
CMYK	cmyk(68.2%, 27.7%, 0%, 32.2%)
CIE-LAB	lab(50.09, -6.24, -31.90)
CIE-LCH	lch(50.09, 32.51, 258.94°)
OKLab	oklab(56.66% -0.0484 -0.0899)
OKLCH	oklch(56.66% 0.102 241.7)
XYZ	xyz(16.4491, 18.4948, 42.2300)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377DAD #AD6737

analogous

#37ADA2 #377DAD #3742AD

triadic

#377DAD #AD377D #7DAD37

tetradic

#377DAD #A237AD #AD6737 #42AD37

square

#377DAD #A237AD #AD6737 #42AD37

split-complementary

#377DAD #AD3742 #ADA237

monochromatic

#193A50 #285B7F #377DAD #579BCA #86B7D8

Accessibility & contrast

On white

4.47

#377DAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#377DAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377DAD

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377DAD	#FFFFFF	#000000	##000000
##377DAD	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)

#677EAF

Deuteranopia (green-blind)

#5772AC

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #377dad;
/* rgb */ color: rgb(55, 125, 173);
/* oklch */ color: oklch(56.7% 0.102 241.7);

Tailwind

colors: {
  custom: {
    50: '#7ba2c5',
    500: '#377dad',
    950: '#000000',
  },
}

SCSS

$custom: #377dad;
$custom-light: #7ba2c5;
$custom-dark: #000000;

JSON

{
  "hex": "#377dad",
  "rgb": {
    "r": 55,
    "g": 125,
    "b": 173
  },
  "hsl": {
    "h": 204.407,
    "s": 51.754,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56662,
    "c": 0.10213,
    "h": 241.7
  },
  "luminance": 0.18497
}

Semantic roles & 50–950 ramp

primary

#377DAD

secondary

#C2997D

accent

#874DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F13

muted

#7C7E82

Preview Lab

Preview with #377DAD

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

Preview Lab → · Contrast checker → · Palette generator →