#397ABB#397ABB

#397ABB is a mid, vivid cyan. Relative luminance 0.184; OKLCH L 56.8% C 0.121 H 250.8°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#397ABB
RGB	rgb(57, 122, 187)
HSL	hsl(210, 53%, 48%)
HSV	hsv(210, 70%, 73%)
CMYK	cmyk(69.5%, 34.8%, 0%, 26.7%)
CIE-LAB	lab(49.95, 0.80, -40.21)
CIE-LCH	lch(49.95, 40.22, 271.14°)
OKLab	oklab(56.79% -0.0398 -0.1141)
OKLCH	oklch(56.79% 0.121 250.8)
XYZ	xyz(17.6132, 18.3749, 49.6225)
Luminance	0.1838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ABB #BB7A39

analogous

#39BBBB #397ABB #3939BB

triadic

#397ABB #BB397A #7ABB39

tetradic

#397ABB #BB39BB #BB7A39 #39BB39

square

#397ABB #BB39BB #BB7A39 #39BB39

split-complementary

#397ABB #BB3939 #BBBB39

monochromatic

#1C3D5D #2B5B8C #397ABB #6299CF #91B7DD

Accessibility & contrast

On white

4.49

#397ABB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#397ABB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ABB

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ABB	#FFFFFF	#000000	##000000
##397ABB	1.00	4.49	4.68	4.68
#FFFFFF	4.49	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7EBE

Deuteranopia (green-blind)

#4A71BA

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397abb;
/* rgb */ color: rgb(57, 122, 187);
/* oklch */ color: oklch(56.8% 0.121 250.8);

Tailwind

colors: {
  custom: {
    50: '#7ea0d0',
    500: '#397abb',
    950: '#000000',
  },
}

SCSS

$custom: #397abb;
$custom-light: #7ea0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#397abb",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 187
  },
  "hsl": {
    "h": 210,
    "s": 53.279,
    "l": 47.843
  },
  "oklch": {
    "l": 0.56792,
    "c": 0.12086,
    "h": 250.8
  },
  "luminance": 0.18377
}

Semantic roles & 50–950 ramp

primary

#397ABB

secondary

#C8A887

accent

#944BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #397ABB

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

Preview Lab → · Contrast checker → · Palette generator →