#397AA8#397AA8

#397AA8 is a mid, moderate cyan. Relative luminance 0.176; OKLCH L 55.8% C 0.098 H 242.2°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#397AA8
RGB	rgb(57, 122, 168)
HSL	hsl(205, 49%, 44%)
HSV	hsv(205, 66%, 66%)
CMYK	cmyk(66.1%, 27.4%, 0%, 34.1%)
CIE-LAB	lab(49.03, -5.87, -30.66)
CIE-LCH	lch(49.03, 31.22, 259.16°)
OKLab	oklab(55.76% -0.0455 -0.0863)
OKLCH	oklch(55.76% 0.098 242.2)
XYZ	xyz(15.7121, 17.6145, 39.6101)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AA8 #A86739

analogous

#39A89F #397AA8 #3943A8

triadic

#397AA8 #A8397A #7AA839

tetradic

#397AA8 #9F39A8 #A86739 #43A839

square

#397AA8 #9F39A8 #A86739 #43A839

split-complementary

#397AA8 #A83943 #A89F39

monochromatic

#1A384D #29597A #397AA8 #5899C6 #86B5D6

Accessibility & contrast

On white

4.64

#397AA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#397AA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397AA8

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AA8	#FFFFFF	#000000	##FFFFFF
##397AA8	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#657BAA

Deuteranopia (green-blind)

#5670A7

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397aa8;
/* rgb */ color: rgb(57, 122, 168);
/* oklch */ color: oklch(55.8% 0.098 242.2);

Tailwind

colors: {
  custom: {
    50: '#7ba0c2',
    500: '#397aa8',
    950: '#000000',
  },
}

SCSS

$custom: #397aa8;
$custom-light: #7ba0c2;
$custom-dark: #000000;

JSON

{
  "hex": "#397aa8",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 168
  },
  "hsl": {
    "h": 204.865,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55763,
    "c": 0.0976,
    "h": 242.2
  },
  "luminance": 0.17616
}

Semantic roles & 50–950 ramp

primary

#397AA8

secondary

#C0997D

accent

#884FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397AA8

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

Preview Lab → · Contrast checker → · Palette generator →