#397EB2#397EB2

#397EB2 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.2% C 0.106 H 244.1°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#397EB2
RGB	rgb(57, 126, 178)
HSL	hsl(206, 51%, 46%)
HSV	hsv(206, 68%, 70%)
CMYK	cmyk(68%, 29.2%, 0%, 30.2%)
CIE-LAB	lab(50.69, -4.76, -33.85)
CIE-LCH	lch(50.69, 34.18, 262.00°)
OKLab	oklab(57.23% -0.0465 -0.0956)
OKLCH	oklch(57.23% 0.106 244.1)
XYZ	xyz(17.1810, 19.0041, 44.8735)
Luminance	0.1901 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EB2 #B26D39

analogous

#39B2A9 #397EB2 #3942B2

triadic

#397EB2 #B2397E #7EB239

tetradic

#397EB2 #A939B2 #B26D39 #42B239

square

#397EB2 #A939B2 #B26D39 #42B239

split-complementary

#397EB2 #B23942 #B2A939

monochromatic

#1B3C55 #2A5D84 #397EB2 #5D9CCB #8BB8DA

Accessibility & contrast

On white

4.37

#397EB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#397EB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EB2

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EB2	#FFFFFF	#000000	##000000
##397EB2	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB4

Deuteranopia (green-blind)

#5673B1

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397eb2;
/* rgb */ color: rgb(57, 126, 178);
/* oklch */ color: oklch(57.2% 0.106 244.1);

Tailwind

colors: {
  custom: {
    50: '#7da3c9',
    500: '#397eb2',
    950: '#000000',
  },
}

SCSS

$custom: #397eb2;
$custom-light: #7da3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#397eb2",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 178
  },
  "hsl": {
    "h": 205.785,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.57233,
    "c": 0.10626,
    "h": 244.1
  },
  "luminance": 0.19006
}

Semantic roles & 50–950 ramp

primary

#397EB2

secondary

#C49F82

accent

#8A4DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397EB2

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

Preview Lab → · Contrast checker → · Palette generator →