#397EB0#397EB0

#397EB0 is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.104 H 243.0°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#397EB0
RGB	rgb(57, 126, 176)
HSL	hsl(205, 51%, 46%)
HSV	hsv(205, 68%, 69%)
CMYK	cmyk(67.6%, 28.4%, 0%, 31%)
CIE-LAB	lab(50.60, -5.45, -32.84)
CIE-LCH	lch(50.60, 33.29, 260.58°)
OKLab	oklab(57.13% -0.0471 -0.0926)
OKLCH	oklch(57.13% 0.104 243)
XYZ	xyz(16.9817, 18.9244, 43.8237)
Luminance	0.1893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EB0 #B06B39

analogous

#39B0A6 #397EB0 #3942B0

triadic

#397EB0 #B0397E #7EB039

tetradic

#397EB0 #A639B0 #B06B39 #42B039

square

#397EB0 #A639B0 #B06B39 #42B039

split-complementary

#397EB0 #B03942 #B0A639

monochromatic

#1B3C54 #2A5D82 #397EB0 #5C9CCA #8AB8D9

Accessibility & contrast

On white

4.39

#397EB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#397EB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EB0

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EB0	#FFFFFF	#000000	##000000
##397EB0	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677FB2

Deuteranopia (green-blind)

#5773AF

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397eb0;
/* rgb */ color: rgb(57, 126, 176);
/* oklch */ color: oklch(57.1% 0.104 243.0);

Tailwind

colors: {
  custom: {
    50: '#7ca3c8',
    500: '#397eb0',
    950: '#000000',
  },
}

SCSS

$custom: #397eb0;
$custom-light: #7ca3c8;
$custom-dark: #000000;

JSON

{
  "hex": "#397eb0",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 176
  },
  "hsl": {
    "h": 205.21,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.57129,
    "c": 0.10392,
    "h": 243
  },
  "luminance": 0.18926
}

Semantic roles & 50–950 ramp

primary

#397EB0

secondary

#C49D81

accent

#894DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397EB0

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

Preview Lab → · Contrast checker → · Palette generator →