#397CCE#397CCE

#397CCE is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.4% C 0.143 H 255.1°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#397CCE
RGB	rgb(57, 124, 206)
HSL	hsl(213, 60%, 52%)
HSV	hsv(213, 72%, 81%)
CMYK	cmyk(72.3%, 39.8%, 0%, 19.2%)
CIE-LAB	lab(51.54, 6.43, -48.55)
CIE-LCH	lch(51.54, 48.97, 277.54°)
OKLab	oklab(58.37% -0.0369 -0.1385)
OKLCH	oklch(58.37% 0.143 255.1)
XYZ	xyz(20.0315, 19.7392, 61.1349)
Luminance	0.1974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CCE #CE8B39

analogous

#39C7CE #397CCE #4139CE

triadic

#397CCE #CE397C #7CCE39

tetradic

#397CCE #CE39C7 #CE8B39 #39CE41

square

#397CCE #CE39C7 #CE8B39 #39CE41

split-complementary

#397CCE #CE4139 #C7CE39

monochromatic

#1C4271 #285FA2 #397CCE #6A9CDA #9BBDE6

Accessibility & contrast

On white

4.24

#397CCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#397CCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CCE

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CCE	#FFFFFF	#000000	##000000
##397CCE	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5582D1

Deuteranopia (green-blind)

#3E75CC

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397cce;
/* rgb */ color: rgb(57, 124, 206);
/* oklch */ color: oklch(58.4% 0.143 255.1);

Tailwind

colors: {
  custom: {
    50: '#82a1dd',
    500: '#397cce',
    950: '#000000',
  },
}

SCSS

$custom: #397cce;
$custom-light: #82a1dd;
$custom-dark: #000000;

JSON

{
  "hex": "#397cce",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 206
  },
  "hsl": {
    "h": 213.02,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58368,
    "c": 0.14335,
    "h": 255.1
  },
  "luminance": 0.19741
}

Semantic roles & 50–950 ramp

primary

#397CCE

secondary

#D2B591

accent

#9C44E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397CCE

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

Preview Lab → · Contrast checker → · Palette generator →