#397FB8#397FB8

#397FB8 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.8% C 0.113 H 246.1°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#397FB8
RGB	rgb(57, 127, 184)
HSL	hsl(207, 53%, 47%)
HSV	hsv(207, 69%, 72%)
CMYK	cmyk(69%, 31%, 0%, 27.8%)
CIE-LAB	lab(51.28, -3.25, -36.39)
CIE-LCH	lch(51.28, 36.53, 264.90°)
OKLab	oklab(57.79% -0.0456 -0.1029)
OKLCH	oklch(57.79% 0.113 246.1)
XYZ	xyz(17.9252, 19.5074, 48.1587)
Luminance	0.1951 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB8 #B87239

analogous

#39B8B1 #397FB8 #3940B8

triadic

#397FB8 #B8397F #7FB839

tetradic

#397FB8 #B139B8 #B87239 #40B839

square

#397FB8 #B139B8 #B87239 #40B839

split-complementary

#397FB8 #B83940 #B8B139

monochromatic

#1C3E5B #2B5F89 #397FB8 #609DCE #8FBADC

Accessibility & contrast

On white

4.28

#397FB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#397FB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB8

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB8	#FFFFFF	#000000	##000000
##397FB8	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6581BA

Deuteranopia (green-blind)

#5475B7

Tritanopia (blue-blind)

#008D93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397fb8;
/* rgb */ color: rgb(57, 127, 184);
/* oklch */ color: oklch(57.8% 0.113 246.1);

Tailwind

colors: {
  custom: {
    50: '#7ea3cd',
    500: '#397fb8',
    950: '#000000',
  },
}

SCSS

$custom: #397fb8;
$custom-light: #7ea3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb8",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 184
  },
  "hsl": {
    "h": 206.929,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57788,
    "c": 0.11259,
    "h": 246.1
  },
  "luminance": 0.19509
}

Semantic roles & 50–950 ramp

primary

#397FB8

secondary

#C7A386

accent

#8D4CDC

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB8

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

Preview Lab → · Contrast checker → · Palette generator →