#397FCA#397FCA

#397FCA is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.8% C 0.135 H 252.5°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#397FCA
RGB	rgb(57, 127, 202)
HSL	hsl(211, 58%, 51%)
HSV	hsv(211, 72%, 79%)
CMYK	cmyk(71.8%, 37.1%, 0%, 20.8%)
CIE-LAB	lab(52.19, 3.16, -45.25)
CIE-LCH	lch(52.19, 45.36, 273.99°)
OKLab	oklab(58.8% -0.0407 -0.1288)
OKLCH	oklch(58.8% 0.135 252.5)
XYZ	xyz(19.9334, 20.3107, 58.7355)
Luminance	0.2031 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FCA #CA8439

analogous

#39C8CA #397FCA #3B39CA

triadic

#397FCA #CA397F #7FCA39

tetradic

#397FCA #CA39C8 #CA8439 #39CA3B

square

#397FCA #CA39C8 #CA8439 #39CA3B

split-complementary

#397FCA #CA3B39 #C8CA39

monochromatic

#1D436C #2A619C #397FCA #699ED7 #9ABDE4

Accessibility & contrast

On white

4.15

#397FCA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#397FCA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FCA

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FCA	#FFFFFF	#000000	##000000
##397FCA	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D84CD

Deuteranopia (green-blind)

#4776C9

Tritanopia (blue-blind)

#00919B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397fca;
/* rgb */ color: rgb(57, 127, 202);
/* oklch */ color: oklch(58.8% 0.135 252.5);

Tailwind

colors: {
  custom: {
    50: '#81a3da',
    500: '#397fca',
    950: '#000000',
  },
}

SCSS

$custom: #397fca;
$custom-light: #81a3da;
$custom-dark: #000000;

JSON

{
  "hex": "#397fca",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 202
  },
  "hsl": {
    "h": 211.034,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.58801,
    "c": 0.13506,
    "h": 252.5
  },
  "luminance": 0.20313
}

Semantic roles & 50–950 ramp

primary

#397FCA

secondary

#D0B18F

accent

#9747E1

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #397FCA

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

Preview Lab → · Contrast checker → · Palette generator →