#397EAD#397EAD

#397EAD is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.0% C 0.100 H 241.4°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#397EAD
RGB	rgb(57, 126, 173)
HSL	hsl(204, 50%, 45%)
HSV	hsv(204, 67%, 68%)
CMYK	cmyk(67.1%, 27.2%, 0%, 32.2%)
CIE-LAB	lab(50.46, -6.49, -31.32)
CIE-LCH	lch(50.46, 31.99, 258.30°)
OKLab	oklab(56.97% -0.0481 -0.0882)
OKLCH	oklch(56.97% 0.1 241.4)
XYZ	xyz(16.6881, 18.8070, 42.2777)
Luminance	0.1881 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EAD #AD6839

analogous

#39ADA2 #397EAD #3944AD

triadic

#397EAD #AD397E #7EAD39

tetradic

#397EAD #A239AD #AD6839 #44AD39

square

#397EAD #A239AD #AD6839 #44AD39

split-complementary

#397EAD #AD3944 #ADA239

monochromatic

#1B3B51 #2A5C7F #397EAD #5A9CC9 #88B8D8

Accessibility & contrast

On white

4.41

#397EAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#397EAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EAD

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EAD	#FFFFFF	#000000	##000000
##397EAD	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697EAF

Deuteranopia (green-blind)

#5973AC

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397ead;
/* rgb */ color: rgb(57, 126, 173);
/* oklch */ color: oklch(57.0% 0.100 241.4);

Tailwind

colors: {
  custom: {
    50: '#7ca3c5',
    500: '#397ead',
    950: '#000000',
  },
}

SCSS

$custom: #397ead;
$custom-light: #7ca3c5;
$custom-dark: #000000;

JSON

{
  "hex": "#397ead",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 173
  },
  "hsl": {
    "h": 204.31,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56974,
    "c": 0.10048,
    "h": 241.4
  },
  "luminance": 0.18809
}

Semantic roles & 50–950 ramp

primary

#397EAD

secondary

#C29B80

accent

#874EDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #397EAD

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

Preview Lab → · Contrast checker → · Palette generator →