#377AA7#377AA7

#377AA7 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.097 H 241.0°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#377AA7
RGB	rgb(55, 122, 167)
HSL	hsl(204, 50%, 44%)
HSV	hsv(204, 67%, 65%)
CMYK	cmyk(67.1%, 26.9%, 0%, 34.5%)
CIE-LAB	lab(48.91, -6.56, -30.27)
CIE-LCH	lch(48.91, 30.97, 257.77°)
OKLab	oklab(55.64% -0.0472 -0.0852)
OKLCH	oklch(55.64% 0.097 241)
XYZ	xyz(15.5075, 17.5197, 39.1161)
Luminance	0.1752 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AA7 #A76437

analogous

#37A79C #377AA7 #3742A7

triadic

#377AA7 #A7377A #7AA737

tetradic

#377AA7 #9C37A7 #A76437 #42A737

square

#377AA7 #9C37A7 #A76437 #42A737

split-complementary

#377AA7 #A73742 #A79C37

monochromatic

#19374B #285879 #377AA7 #5499C7 #82B4D6

Accessibility & contrast

On white

4.66

#377AA7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#377AA7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377AA7

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##377AA7	#FFFFFF	#000000	##FFFFFF
##377AA7	1.00	4.66	4.50	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#667AA9

Deuteranopia (green-blind)

#566FA6

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #377aa7;
/* rgb */ color: rgb(55, 122, 167);
/* oklch */ color: oklch(55.6% 0.097 241.0);

Tailwind

colors: {
  custom: {
    50: '#7aa0c1',
    500: '#377aa7',
    950: '#000000',
  },
}

SCSS

$custom: #377aa7;
$custom-light: #7aa0c1;
$custom-dark: #000000;

JSON

{
  "hex": "#377aa7",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 167
  },
  "hsl": {
    "h": 204.107,
    "s": 50.45,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55636,
    "c": 0.09742,
    "h": 241
  },
  "luminance": 0.17521
}

Semantic roles & 50–950 ramp

primary

#377AA7

secondary

#C0967A

accent

#864EDA

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #377AA7

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

Preview Lab → · Contrast checker → · Palette generator →