#397BDA#397BDA

#397BDA is a mid, vivid blue. Relative luminance 0.201; OKLCH L 58.9% C 0.160 H 257.9°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#397BDA
RGB	rgb(57, 123, 218)
HSL	hsl(215, 69%, 54%)
HSV	hsv(215, 74%, 85%)
CMYK	cmyk(73.9%, 43.6%, 0%, 14.5%)
CIE-LAB	lab(51.94, 11.41, -54.70)
CIE-LCH	lch(51.94, 55.87, 281.78°)
OKLab	oklab(58.9% -0.0336 -0.1566)
OKLCH	oklch(58.9% 0.16 257.9)
XYZ	xyz(21.4206, 20.0953, 69.0659)
Luminance	0.2010 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BDA #DA9839

analogous

#39CCDA #397BDA #4839DA

triadic

#397BDA #DA397B #7BDA39

tetradic

#397BDA #DA39CC #DA9839 #39DA48

square

#397BDA #DA39CC #DA9839 #39DA48

split-complementary

#397BDA #DA4839 #CCDA39

monochromatic

#184381 #225EB4 #397BDA #6D9DE4 #A0C0ED

Accessibility & contrast

On white

4.18

#397BDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#397BDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BDA

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BDA	#FFFFFF	#000000	##000000
##397BDA	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B84DE

Deuteranopia (green-blind)

#2C75D8

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397bda;
/* rgb */ color: rgb(57, 123, 218);
/* oklch */ color: oklch(58.9% 0.160 257.9);

Tailwind

colors: {
  custom: {
    50: '#84a0e6',
    500: '#397bda',
    950: '#000000',
  },
}

SCSS

$custom: #397bda;
$custom-light: #84a0e6;
$custom-dark: #000000;

JSON

{
  "hex": "#397bda",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 218
  },
  "hsl": {
    "h": 215.404,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58903,
    "c": 0.16016,
    "h": 257.9
  },
  "luminance": 0.20098
}

Semantic roles & 50–950 ramp

primary

#397BDA

secondary

#DABE95

accent

#A43CEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #397BDA

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

Preview Lab → · Contrast checker → · Palette generator →