#397EB3#397EB3

#397EB3 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.107 H 244.6°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#397EB3
RGB	rgb(57, 126, 179)
HSL	hsl(206, 52%, 46%)
HSV	hsv(206, 68%, 70%)
CMYK	cmyk(68.2%, 29.6%, 0%, 29.8%)
CIE-LAB	lab(50.74, -4.41, -34.35)
CIE-LCH	lch(50.74, 34.63, 262.69°)
OKLab	oklab(57.29% -0.0462 -0.097)
OKLCH	oklch(57.29% 0.107 244.6)
XYZ	xyz(17.2818, 19.0444, 45.4042)
Luminance	0.1905 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EB3 #B36E39

analogous

#39B3AB #397EB3 #3941B3

triadic

#397EB3 #B3397E #7EB339

tetradic

#397EB3 #AB39B3 #B36E39 #41B339

square

#397EB3 #AB39B3 #B36E39 #41B339

split-complementary

#397EB3 #B33941 #B3AB39

monochromatic

#1B3D56 #2A5D85 #397EB3 #5E9CCC #8CB8DA

Accessibility & contrast

On white

4.37

#397EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#397EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EB3

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EB3	#FFFFFF	#000000	##000000
##397EB3	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)

#667FB5

Deuteranopia (green-blind)

#5574B2

Tritanopia (blue-blind)

#008B91

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397eb3;
/* rgb */ color: rgb(57, 126, 179);
/* oklch */ color: oklch(57.3% 0.107 244.6);

Tailwind

colors: {
  custom: {
    50: '#7da3ca',
    500: '#397eb3',
    950: '#000000',
  },
}

SCSS

$custom: #397eb3;
$custom-light: #7da3ca;
$custom-dark: #000000;

JSON

{
  "hex": "#397eb3",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 179
  },
  "hsl": {
    "h": 206.066,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.57286,
    "c": 0.10744,
    "h": 244.6
  },
  "luminance": 0.19046
}

Semantic roles & 50–950 ramp

primary

#397EB3

secondary

#C5A083

accent

#8B4DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397EB3

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

Preview Lab → · Contrast checker → · Palette generator →