#397EAB#397EAB

#397EAB is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.9% C 0.098 H 240.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#397EAB
RGB	rgb(57, 126, 171)
HSL	hsl(204, 50%, 45%)
HSV	hsv(204, 67%, 67%)
CMYK	cmyk(66.7%, 26.3%, 0%, 32.9%)
CIE-LAB	lab(50.37, -7.18, -30.30)
CIE-LCH	lch(50.37, 31.14, 256.68°)
OKLab	oklab(56.87% -0.0488 -0.0853)
OKLCH	oklch(56.87% 0.098 240.2)
XYZ	xyz(16.4961, 18.7301, 41.2661)
Luminance	0.1873 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EAB #AB6639

analogous

#39AB9F #397EAB #3945AB

triadic

#397EAB #AB397E #7EAB39

tetradic

#397EAB #9F39AB #AB6639 #45AB39

square

#397EAB #9F39AB #AB6639 #45AB39

split-complementary

#397EAB #AB3945 #AB9F39

monochromatic

#1A3A4F #2A5C7D #397EAB #599CC8 #87B8D7

Accessibility & contrast

On white

4.42

#397EAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#397EAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EAB

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EAB	#FFFFFF	#000000	##000000
##397EAB	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#697EAD

Deuteranopia (green-blind)

#5A73AA

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397eab;
/* rgb */ color: rgb(57, 126, 171);
/* oklch */ color: oklch(56.9% 0.098 240.2);

Tailwind

colors: {
  custom: {
    50: '#7ca3c4',
    500: '#397eab',
    950: '#000000',
  },
}

SCSS

$custom: #397eab;
$custom-light: #7ca3c4;
$custom-dark: #000000;

JSON

{
  "hex": "#397eab",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 171
  },
  "hsl": {
    "h": 203.684,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56873,
    "c": 0.09824,
    "h": 240.2
  },
  "luminance": 0.18732
}

Semantic roles & 50–950 ramp

primary

#397EAB

secondary

#C1997F

accent

#854EDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #397EAB

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

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