#397CC3#397CC3

#397CC3 is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.129 H 252.1°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#397CC3
RGB	rgb(57, 124, 195)
HSL	hsl(211, 55%, 49%)
HSV	hsv(211, 71%, 76%)
CMYK	cmyk(70.8%, 36.4%, 0%, 23.5%)
CIE-LAB	lab(50.95, 2.46, -43.22)
CIE-LCH	lch(50.95, 43.29, 273.25°)
OKLab	oklab(57.71% -0.0396 -0.1229)
OKLCH	oklch(57.71% 0.129 252.1)
XYZ	xyz(18.7417, 19.2233, 54.3419)
Luminance	0.1923 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CC3 #C38039

analogous

#39C1C3 #397CC3 #3B39C3

triadic

#397CC3 #C3397C #7CC339

tetradic

#397CC3 #C339C1 #C38039 #39C33B

square

#397CC3 #C339C1 #C38039 #39C33B

split-complementary

#397CC3 #C33B39 #C1C339

monochromatic

#1D4064 #2B5E94 #397CC3 #679BD2 #96BAE0

Accessibility & contrast

On white

4.33

#397CC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#397CC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CC3

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CC3	#FFFFFF	#000000	##000000
##397CC3	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C80C6

Deuteranopia (green-blind)

#4873C2

Tritanopia (blue-blind)

#008D96

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397cc3;
/* rgb */ color: rgb(57, 124, 195);
/* oklch */ color: oklch(57.7% 0.129 252.1);

Tailwind

colors: {
  custom: {
    50: '#80a1d5',
    500: '#397cc3',
    950: '#000000',
  },
}

SCSS

$custom: #397cc3;
$custom-light: #80a1d5;
$custom-dark: #000000;

JSON

{
  "hex": "#397cc3",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 195
  },
  "hsl": {
    "h": 210.87,
    "s": 54.762,
    "l": 49.412
  },
  "oklch": {
    "l": 0.57711,
    "c": 0.12912,
    "h": 252.1
  },
  "luminance": 0.19225
}

Semantic roles & 50–950 ramp

primary

#397CC3

secondary

#CCAD8C

accent

#964ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #397CC3

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

Preview Lab → · Contrast checker → · Palette generator →