#397FB2#397FB2

#397FB2 is a mid, moderate cyan. Relative luminance 0.193; OKLCH L 57.5% C 0.105 H 243.2°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#397FB2
RGB	rgb(57, 127, 178)
HSL	hsl(205, 51%, 46%)
HSV	hsv(205, 68%, 70%)
CMYK	cmyk(68%, 28.7%, 0%, 30.2%)
CIE-LAB	lab(50.99, -5.34, -33.38)
CIE-LCH	lch(50.99, 33.81, 260.91°)
OKLab	oklab(57.47% -0.0475 -0.0942)
OKLCH	oklch(57.47% 0.105 243.2)
XYZ	xyz(17.3095, 19.2611, 44.9164)
Luminance	0.1926 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB2 #B26C39

analogous

#39B2A8 #397FB2 #3943B2

triadic

#397FB2 #B2397F #7FB239

tetradic

#397FB2 #A839B2 #B26C39 #43B239

square

#397FB2 #A839B2 #B26C39 #43B239

split-complementary

#397FB2 #B23943 #B2A839

monochromatic

#1B3D55 #2A5E84 #397FB2 #5D9DCB #8BB9DA

Accessibility & contrast

On white

4.33

#397FB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#397FB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB2

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB2	#FFFFFF	#000000	##000000
##397FB2	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6880B4

Deuteranopia (green-blind)

#5774B1

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fb2;
/* rgb */ color: rgb(57, 127, 178);
/* oklch */ color: oklch(57.5% 0.105 243.2);

Tailwind

colors: {
  custom: {
    50: '#7da3c9',
    500: '#397fb2',
    950: '#000000',
  },
}

SCSS

$custom: #397fb2;
$custom-light: #7da3c9;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb2",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 178
  },
  "hsl": {
    "h": 205.289,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.5747,
    "c": 0.10549,
    "h": 243.2
  },
  "luminance": 0.19263
}

Semantic roles & 50–950 ramp

primary

#397FB2

secondary

#C49E82

accent

#894DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB2

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

Preview Lab → · Contrast checker → · Palette generator →