#397DB5#397DB5

#397DB5 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.2% C 0.111 H 246.3°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#397DB5
RGB	rgb(57, 125, 181)
HSL	hsl(207, 52%, 47%)
HSV	hsv(207, 69%, 71%)
CMYK	cmyk(68.5%, 30.9%, 0%, 29%)
CIE-LAB	lab(50.54, -3.12, -35.82)
CIE-LCH	lch(50.54, 35.96, 265.03°)
OKLab	oklab(57.16% -0.0445 -0.1013)
OKLCH	oklch(57.16% 0.111 246.3)
XYZ	xyz(17.3583, 18.8714, 46.4348)
Luminance	0.1887 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DB5 #B57139

analogous

#39B5AF #397DB5 #393FB5

triadic

#397DB5 #B5397D #7DB539

tetradic

#397DB5 #AF39B5 #B57139 #3FB539

square

#397DB5 #AF39B5 #B57139 #3FB539

split-complementary

#397DB5 #B5393F #B5AF39

monochromatic

#1C3D58 #2A5D86 #397DB5 #5F9BCD #8DB8DB

Accessibility & contrast

On white

4.40

#397DB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#397DB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DB5

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DB5	#FFFFFF	#000000	##000000
##397DB5	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647FB7

Deuteranopia (green-blind)

#5373B4

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397db5;
/* rgb */ color: rgb(57, 125, 181);
/* oklch */ color: oklch(57.2% 0.111 246.3);

Tailwind

colors: {
  custom: {
    50: '#7da2cb',
    500: '#397db5',
    950: '#000000',
  },
}

SCSS

$custom: #397db5;
$custom-light: #7da2cb;
$custom-dark: #000000;

JSON

{
  "hex": "#397db5",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 181
  },
  "hsl": {
    "h": 207.097,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57157,
    "c": 0.11066,
    "h": 246.3
  },
  "luminance": 0.18873
}

Semantic roles & 50–950 ramp

primary

#397DB5

secondary

#C6A284

accent

#8D4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397DB5

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

Preview Lab → · Contrast checker → · Palette generator →