#397AAA#397AAA

#397AAA is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.9% C 0.100 H 243.3°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#397AAA
RGB	rgb(57, 122, 170)
HSL	hsl(205, 50%, 45%)
HSV	hsv(205, 66%, 67%)
CMYK	cmyk(66.5%, 28.2%, 0%, 33.3%)
CIE-LAB	lab(49.12, -5.18, -31.68)
CIE-LCH	lch(49.12, 32.10, 260.72°)
OKLab	oklab(55.87% -0.0448 -0.0893)
OKLCH	oklch(55.87% 0.1 243.3)
XYZ	xyz(15.8998, 17.6896, 40.5989)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AAA #AA6939

analogous

#39AAA2 #397AAA #3941AA

triadic

#397AAA #AA397A #7AAA39

tetradic

#397AAA #A239AA #AA6939 #41AA39

square

#397AAA #A239AA #AA6939 #41AA39

split-complementary

#397AAA #AA3941 #AAA239

monochromatic

#1A384E #2A597C #397AAA #5998C7 #87B5D7

Accessibility & contrast

On white

4.63

#397AAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#397AAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397AAA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AAA	#FFFFFF	#000000	##FFFFFF
##397AAA	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647BAC

Deuteranopia (green-blind)

#5570A9

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397aaa;
/* rgb */ color: rgb(57, 122, 170);
/* oklch */ color: oklch(55.9% 0.100 243.3);

Tailwind

colors: {
  custom: {
    50: '#7ba0c3',
    500: '#397aaa',
    950: '#000000',
  },
}

SCSS

$custom: #397aaa;
$custom-light: #7ba0c3;
$custom-dark: #000000;

JSON

{
  "hex": "#397aaa",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 170
  },
  "hsl": {
    "h": 205.487,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.55866,
    "c": 0.09993,
    "h": 243.3
  },
  "luminance": 0.17691
}

Semantic roles & 50–950 ramp

primary

#397AAA

secondary

#C19A7E

accent

#894ED9

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397AAA

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

Preview Lab → · Contrast checker → · Palette generator →