#397BBD#397BBD

#397BBD is a mid, vivid cyan. Relative luminance 0.187; OKLCH L 57.1% C 0.122 H 250.8°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#397BBD
RGB	rgb(57, 123, 189)
HSL	hsl(210, 54%, 48%)
HSV	hsv(210, 70%, 74%)
CMYK	cmyk(69.8%, 34.9%, 0%, 25.9%)
CIE-LAB	lab(50.34, 0.91, -40.73)
CIE-LCH	lch(50.34, 40.74, 271.28°)
OKLab	oklab(57.14% -0.0402 -0.1156)
OKLCH	oklch(57.14% 0.122 250.8)
XYZ	xyz(17.9522, 18.7080, 50.7991)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BBD #BD7B39

analogous

#39BDBD #397BBD #3939BD

triadic

#397BBD #BD397B #7BBD39

tetradic

#397BBD #BD39BD #BD7B39 #39BD39

square

#397BBD #BD39BD #BD7B39 #39BD39

split-complementary

#397BBD #BD3939 #BDBD39

monochromatic

#1D3E5F #2B5C8E #397BBD #639AD0 #92B8DE

Accessibility & contrast

On white

4.43

#397BBD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#397BBD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BBD

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BBD	#FFFFFF	#000000	##000000
##397BBD	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7FC0

Deuteranopia (green-blind)

#4B72BC

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397bbd;
/* rgb */ color: rgb(57, 123, 189);
/* oklch */ color: oklch(57.1% 0.122 250.8);

Tailwind

colors: {
  custom: {
    50: '#7fa0d1',
    500: '#397bbd',
    950: '#000000',
  },
}

SCSS

$custom: #397bbd;
$custom-light: #7fa0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#397bbd",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 189
  },
  "hsl": {
    "h": 210,
    "s": 53.659,
    "l": 48.235
  },
  "oklch": {
    "l": 0.57136,
    "c": 0.12243,
    "h": 250.8
  },
  "luminance": 0.1871
}

Semantic roles & 50–950 ramp

primary

#397BBD

secondary

#C9A989

accent

#944BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #397BBD

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

Preview Lab → · Contrast checker → · Palette generator →