#397FAC#397FAC

#397FAC is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.2% C 0.099 H 239.9°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#397FAC
RGB	rgb(57, 127, 172)
HSL	hsl(203, 50%, 45%)
HSV	hsv(203, 67%, 67%)
CMYK	cmyk(66.9%, 26.2%, 0%, 32.5%)
CIE-LAB	lab(50.72, -7.41, -30.34)
CIE-LCH	lch(50.72, 31.23, 256.27°)
OKLab	oklab(57.16% -0.0495 -0.0854)
OKLCH	oklch(57.16% 0.099 239.9)
XYZ	xyz(16.7203, 19.0254, 41.8128)
Luminance	0.1903 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FAC #AC6639

analogous

#39AC9F #397FAC #3946AC

triadic

#397FAC #AC397F #7FAC39

tetradic

#397FAC #9F39AC #AC6639 #46AC39

square

#397FAC #9F39AC #AC6639 #46AC39

split-complementary

#397FAC #AC3946 #AC9F39

monochromatic

#1B3B50 #2A5D7E #397FAC #5A9DC8 #88B8D8

Accessibility & contrast

On white

4.37

#397FAC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#397FAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FAC

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FAC	#FFFFFF	#000000	##000000
##397FAC	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7FAE

Deuteranopia (green-blind)

#5B74AB

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fac;
/* rgb */ color: rgb(57, 127, 172);
/* oklch */ color: oklch(57.2% 0.099 239.9);

Tailwind

colors: {
  custom: {
    50: '#7ca4c5',
    500: '#397fac',
    950: '#000000',
  },
}

SCSS

$custom: #397fac;
$custom-light: #7ca4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#397fac",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 172
  },
  "hsl": {
    "h": 203.478,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.57162,
    "c": 0.0987,
    "h": 239.9
  },
  "luminance": 0.19027
}

Semantic roles & 50–950 ramp

primary

#397FAC

secondary

#C2997F

accent

#854EDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #397FAC

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

Preview Lab → · Contrast checker → · Palette generator →