#397FE2#397FE2

#397FE2 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.3% C 0.166 H 257.7°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#397FE2
RGB	rgb(57, 127, 226)
HSL	hsl(215, 74%, 55%)
HSV	hsv(215, 75%, 89%)
CMYK	cmyk(74.8%, 43.8%, 0%, 11.4%)
CIE-LAB	lab(53.53, 11.87, -56.65)
CIE-LCH	lch(53.53, 57.88, 281.83°)
OKLab	oklab(60.28% -0.0354 -0.1623)
OKLCH	oklch(60.28% 0.166 257.7)
XYZ	xyz(22.9992, 21.5370, 74.8817)
Luminance	0.2154 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FE2 #E29C39

analogous

#39D3E2 #397FE2 #4739E2

triadic

#397FE2 #E2397F #7FE239

tetradic

#397FE2 #E239D3 #E29C39 #39E247

square

#397FE2 #E239D3 #E29C39 #39E247

split-complementary

#397FE2 #E24739 #D3E239

monochromatic

#15468C #1C61C1 #397FE2 #6EA2EA #A4C4F2

Accessibility & contrast

On white

3.96

#397FE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#397FE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FE2

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FE2	#FFFFFF	#000000	##000000
##397FE2	1.00	3.96	5.31	5.31
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D88E6

Deuteranopia (green-blind)

#2B79E0

Tritanopia (blue-blind)

#0096A5

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #397fe2;
/* rgb */ color: rgb(57, 127, 226);
/* oklch */ color: oklch(60.3% 0.166 257.7);

Tailwind

colors: {
  custom: {
    50: '#85a3ec',
    500: '#397fe2',
    950: '#000000',
  },
}

SCSS

$custom: #397fe2;
$custom-light: #85a3ec;
$custom-dark: #000000;

JSON

{
  "hex": "#397fe2",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 226
  },
  "hsl": {
    "h": 215.148,
    "s": 74.449,
    "l": 55.49
  },
  "oklch": {
    "l": 0.60283,
    "c": 0.1661,
    "h": 257.7
  },
  "luminance": 0.2154
}

Semantic roles & 50–950 ramp

primary

#397FE2

secondary

#DFC198

accent

#A437F1

background

#F9FAFE

surface

#F1F3FD

border

#CBCDD5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #397FE2

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

Preview Lab → · Contrast checker → · Palette generator →