#397AA1#397AA1

#397AA1 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.4% C 0.090 H 237.8°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#397AA1
RGB	rgb(57, 122, 161)
HSL	hsl(203, 48%, 43%)
HSV	hsv(203, 65%, 63%)
CMYK	cmyk(64.6%, 24.2%, 0%, 36.9%)
CIE-LAB	lab(48.71, -8.26, -27.07)
CIE-LCH	lch(48.71, 28.30, 253.03°)
OKLab	oklab(55.41% -0.0479 -0.076)
OKLCH	oklch(55.41% 0.09 237.8)
XYZ	xyz(15.0774, 17.3606, 36.2676)
Luminance	0.1736 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AA1 #A16039

analogous

#39A194 #397AA1 #3946A1

triadic

#397AA1 #A1397A #7AA139

tetradic

#397AA1 #9439A1 #A16039 #46A139

square

#397AA1 #9439A1 #A16039 #46A139

split-complementary

#397AA1 #A13946 #A19439

monochromatic

#193647 #295874 #397AA1 #5599C3 #82B4D3

Accessibility & contrast

On white

4.70

#397AA1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#397AA1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397AA1

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AA1	#FFFFFF	#000000	##FFFFFF
##397AA1	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687AA3

Deuteranopia (green-blind)

#5A6FA0

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397aa1;
/* rgb */ color: rgb(57, 122, 161);
/* oklch */ color: oklch(55.4% 0.090 237.8);

Tailwind

colors: {
  custom: {
    50: '#7aa0bd',
    500: '#397aa1',
    950: '#000000',
  },
}

SCSS

$custom: #397aa1;
$custom-light: #7aa0bd;
$custom-dark: #000000;

JSON

{
  "hex": "#397aa1",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 161
  },
  "hsl": {
    "h": 202.5,
    "s": 47.706,
    "l": 42.745
  },
  "oklch": {
    "l": 0.55411,
    "c": 0.08981,
    "h": 237.8
  },
  "luminance": 0.17362
}

Semantic roles & 50–950 ramp

primary

#397AA1

secondary

#BC9379

accent

#8350D7

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397AA1

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

Preview Lab → · Contrast checker → · Palette generator →