#397ECA#397ECA

#397ECA is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.6% C 0.136 H 253.0°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#397ECA
RGB	rgb(57, 126, 202)
HSL	hsl(211, 58%, 51%)
HSV	hsv(211, 72%, 79%)
CMYK	cmyk(71.8%, 37.6%, 0%, 20.8%)
CIE-LAB	lab(51.90, 3.76, -45.70)
CIE-LCH	lch(51.90, 45.86, 274.71°)
OKLab	oklab(58.58% -0.0397 -0.1301)
OKLCH	oklch(58.58% 0.136 253)
XYZ	xyz(19.8049, 20.0537, 58.6926)
Luminance	0.2006 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ECA #CA8539

analogous

#39C7CA #397ECA #3C39CA

triadic

#397ECA #CA397E #7ECA39

tetradic

#397ECA #CA39C7 #CA8539 #39CA3C

square

#397ECA #CA39C7 #CA8539 #39CA3C

split-complementary

#397ECA #CA3C39 #C7CA39

monochromatic

#1D426C #2A609C #397ECA #699DD7 #9ABDE4

Accessibility & contrast

On white

4.19

#397ECA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#397ECA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ECA

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ECA	#FFFFFF	#000000	##000000
##397ECA	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B83CD

Deuteranopia (green-blind)

#4576C8

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397eca;
/* rgb */ color: rgb(57, 126, 202);
/* oklch */ color: oklch(58.6% 0.136 253.0);

Tailwind

colors: {
  custom: {
    50: '#81a2da',
    500: '#397eca',
    950: '#000000',
  },
}

SCSS

$custom: #397eca;
$custom-light: #81a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#397eca",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 202
  },
  "hsl": {
    "h": 211.448,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.58575,
    "c": 0.13608,
    "h": 253
  },
  "luminance": 0.20056
}

Semantic roles & 50–950 ramp

primary

#397ECA

secondary

#D0B18F

accent

#9847E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397ECA

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

Preview Lab → · Contrast checker → · Palette generator →