#377AB2#377AB2

#377AB2 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.2% C 0.110 H 246.7°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#377AB2
RGB	rgb(55, 122, 178)
HSL	hsl(207, 53%, 46%)
HSV	hsv(207, 69%, 70%)
CMYK	cmyk(69.1%, 31.5%, 0%, 30.2%)
CIE-LAB	lab(49.43, -2.71, -35.84)
CIE-LCH	lch(49.43, 35.94, 265.67°)
OKLab	oklab(56.22% -0.0437 -0.1014)
OKLCH	oklch(56.22% 0.11 246.7)
XYZ	xyz(16.5679, 17.9439, 44.7012)
Luminance	0.1795 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AB2 #B26F37

analogous

#37B2AC #377AB2 #373CB2

triadic

#377AB2 #B2377A #7AB237

tetradic

#377AB2 #AC37B2 #B26F37 #3CB237

square

#377AB2 #AC37B2 #B26F37 #3CB237

split-complementary

#377AB2 #B2373C #B2AC37

monochromatic

#1A3A54 #295A83 #377AB2 #5A98CC #89B5DB

Accessibility & contrast

On white

4.58

#377AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#377AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #377AB2

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AB2	#FFFFFF	#000000	##000000
##377AB2	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617CB4

Deuteranopia (green-blind)

#5070B1

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377ab2;
/* rgb */ color: rgb(55, 122, 178);
/* oklch */ color: oklch(56.2% 0.110 246.7);

Tailwind

colors: {
  custom: {
    50: '#7ca0c9',
    500: '#377ab2',
    950: '#000000',
  },
}

SCSS

$custom: #377ab2;
$custom-light: #7ca0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#377ab2",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 178
  },
  "hsl": {
    "h": 207.317,
    "s": 52.79,
    "l": 45.686
  },
  "oklch": {
    "l": 0.56217,
    "c": 0.11041,
    "h": 246.7
  },
  "luminance": 0.17946
}

Semantic roles & 50–950 ramp

primary

#377AB2

secondary

#C59F80

accent

#8D4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #377AB2

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

Preview Lab → · Contrast checker → · Palette generator →