#377AAA#377AAA

#377AAA is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.8% C 0.101 H 242.7°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#377AAA
RGB	rgb(55, 122, 170)
HSL	hsl(205, 51%, 44%)
HSV	hsv(205, 68%, 67%)
CMYK	cmyk(67.6%, 28.2%, 0%, 33.3%)
CIE-LAB	lab(49.05, -5.52, -31.80)
CIE-LCH	lch(49.05, 32.27, 260.15°)
OKLab	oklab(55.79% -0.0462 -0.0897)
OKLCH	oklch(55.79% 0.101 242.7)
XYZ	xyz(15.7880, 17.6319, 40.5937)
Luminance	0.1763 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#377AAA #AA6737

analogous

#37AAA1 #377AAA #3741AA

triadic

#377AAA #AA377A #7AAA37

tetradic

#377AAA #A137AA #AA6737 #41AA37

square

#377AAA #A137AA #AA6737 #41AA37

split-complementary

#377AAA #AA3741 #AAA137

monochromatic

#19384E #28597C #377AAA #5699C8 #84B5D7

Accessibility & contrast

On white

4.64

#377AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.53

#377AAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #377AAA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

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

Color blindness preview

Protanopia (red-blind)

#647BAC

Deuteranopia (green-blind)

#5570A9

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #377aaa;
/* rgb */ color: rgb(55, 122, 170);
/* oklch */ color: oklch(55.8% 0.101 242.7);

Tailwind

colors: {
  custom: {
    50: '#7ba0c3',
    500: '#377aaa',
    950: '#000000',
  },
}

SCSS

$custom: #377aaa;
$custom-light: #7ba0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#377aaa",
  "rgb": {
    "r": 55,
    "g": 122,
    "b": 170
  },
  "hsl": {
    "h": 205.043,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55791,
    "c": 0.10086,
    "h": 242.7
  },
  "luminance": 0.17634
}

Semantic roles & 50–950 ramp

primary

#377AAA

secondary

#C1997C

accent

#884DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #377AAA

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

Preview Lab → · Contrast checker → · Palette generator →