#397FB0#397FB0

#397FB0 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.103 H 242.2°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#397FB0
RGB	rgb(57, 127, 176)
HSL	hsl(205, 51%, 46%)
HSV	hsv(205, 68%, 69%)
CMYK	cmyk(67.6%, 27.8%, 0%, 31%)
CIE-LAB	lab(50.90, -6.04, -32.37)
CIE-LCH	lch(50.90, 32.93, 259.44°)
OKLab	oklab(57.37% -0.0482 -0.0913)
OKLCH	oklch(57.37% 0.103 242.2)
XYZ	xyz(17.1102, 19.1814, 43.8665)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB0 #B06A39

analogous

#39B0A5 #397FB0 #3943B0

triadic

#397FB0 #B0397F #7FB039

tetradic

#397FB0 #A539B0 #B06A39 #43B039

square

#397FB0 #A539B0 #B06A39 #43B039

split-complementary

#397FB0 #B03943 #B0A539

monochromatic

#1B3C54 #2A5E82 #397FB0 #5C9DCA #8AB9D9

Accessibility & contrast

On white

4.34

#397FB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#397FB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB0

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB0	#FFFFFF	#000000	##000000
##397FB0	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B2

Deuteranopia (green-blind)

#5874AF

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fb0;
/* rgb */ color: rgb(57, 127, 176);
/* oklch */ color: oklch(57.4% 0.103 242.2);

Tailwind

colors: {
  custom: {
    50: '#7da4c8',
    500: '#397fb0',
    950: '#000000',
  },
}

SCSS

$custom: #397fb0;
$custom-light: #7da4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb0",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 176
  },
  "hsl": {
    "h": 204.706,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57366,
    "c": 0.10319,
    "h": 242.2
  },
  "luminance": 0.19183
}

Semantic roles & 50–950 ramp

primary

#397FB0

secondary

#C49D81

accent

#874DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB0

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

Preview Lab → · Contrast checker → · Palette generator →