#397AB1#397AB1

#397AB1 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.108 H 246.8°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#397AB1
RGB	rgb(57, 122, 177)
HSL	hsl(208, 51%, 46%)
HSV	hsv(208, 68%, 69%)
CMYK	cmyk(67.8%, 31.1%, 0%, 30.6%)
CIE-LAB	lab(49.45, -2.74, -35.22)
CIE-LCH	lch(49.45, 35.33, 265.56°)
OKLab	oklab(56.24% -0.0426 -0.0996)
OKLCH	oklch(56.24% 0.108 246.8)
XYZ	xyz(16.5797, 17.9615, 44.1796)
Luminance	0.1796 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB1 #B17039

analogous

#39B1AC #397AB1 #393EB1

triadic

#397AB1 #B1397A #7AB139

tetradic

#397AB1 #AC39B1 #B17039 #3EB139

square

#397AB1 #AC39B1 #B17039 #3EB139

split-complementary

#397AB1 #B1393E #B1AC39

monochromatic

#1B3A54 #2A5A83 #397AB1 #5D98CB #8BB5DA

Accessibility & contrast

On white

4.57

#397AB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#397AB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB1

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB1	#FFFFFF	#000000	##000000
##397AB1	1.00	4.57	4.59	4.59
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB3

Deuteranopia (green-blind)

#5170B0

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab1;
/* rgb */ color: rgb(57, 122, 177);
/* oklch */ color: oklch(56.2% 0.108 246.8);

Tailwind

colors: {
  custom: {
    50: '#7da0c8',
    500: '#397ab1',
    950: '#000000',
  },
}

SCSS

$custom: #397ab1;
$custom-light: #7da0c8;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab1",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 177
  },
  "hsl": {
    "h": 207.5,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.56237,
    "c": 0.10833,
    "h": 246.8
  },
  "luminance": 0.17963
}

Semantic roles & 50–950 ramp

primary

#397AB1

secondary

#C4A082

accent

#8E4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB1

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

Preview Lab → · Contrast checker → · Palette generator →