#397EE2#397EE2

#397EE2 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.1% C 0.167 H 258.1°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#397EE2
RGB	rgb(57, 126, 226)
HSL	hsl(216, 74%, 55%)
HSV	hsv(216, 75%, 89%)
CMYK	cmyk(74.8%, 44.2%, 0%, 11.4%)
CIE-LAB	lab(53.25, 12.48, -57.10)
CIE-LCH	lch(53.25, 58.45, 282.33°)
OKLab	oklab(60.07% -0.0346 -0.1636)
OKLCH	oklch(60.07% 0.167 258.1)
XYZ	xyz(22.8706, 21.2800, 74.8388)
Luminance	0.2128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EE2 #E29D39

analogous

#39D2E2 #397EE2 #4839E2

triadic

#397EE2 #E2397E #7EE239

tetradic

#397EE2 #E239D2 #E29D39 #39E248

square

#397EE2 #E239D2 #E29D39 #39E248

split-complementary

#397EE2 #E24839 #D2E239

monochromatic

#15458C #1C60C1 #397EE2 #6EA1EA #A4C4F2

Accessibility & contrast

On white

3.99

#397EE2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#397EE2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EE2

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EE2	#FFFFFF	#000000	##000000
##397EE2	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B87E6

Deuteranopia (green-blind)

#2878E0

Tritanopia (blue-blind)

#0096A5

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #397ee2;
/* rgb */ color: rgb(57, 126, 226);
/* oklch */ color: oklch(60.1% 0.167 258.1);

Tailwind

colors: {
  custom: {
    50: '#86a2ec',
    500: '#397ee2',
    950: '#000000',
  },
}

SCSS

$custom: #397ee2;
$custom-light: #86a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#397ee2",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 226
  },
  "hsl": {
    "h": 215.503,
    "s": 74.449,
    "l": 55.49
  },
  "oklch": {
    "l": 0.60069,
    "c": 0.16723,
    "h": 258.1
  },
  "luminance": 0.21283
}

Semantic roles & 50–950 ramp

primary

#397EE2

secondary

#DFC298

accent

#A537F1

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0F16

muted

#7E7E84

Preview Lab

Preview with #397EE2

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

Preview Lab → · Contrast checker → · Palette generator →