#397EAA#397EAA

#397EAA is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 56.8% C 0.097 H 239.6°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#397EAA
RGB	rgb(57, 126, 170)
HSL	hsl(203, 50%, 45%)
HSV	hsv(203, 66%, 67%)
CMYK	cmyk(66.5%, 25.9%, 0%, 33.3%)
CIE-LAB	lab(50.33, -7.52, -29.79)
CIE-LCH	lch(50.33, 30.73, 255.84°)
OKLab	oklab(56.82% -0.0491 -0.0838)
OKLCH	oklch(56.82% 0.097 239.6)
XYZ	xyz(16.4011, 18.6921, 40.7660)
Luminance	0.1869 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EAA #AA6539

analogous

#39AA9E #397EAA #3945AA

triadic

#397EAA #AA397E #7EAA39

tetradic

#397EAA #9E39AA #AA6539 #45AA39

square

#397EAA #9E39AA #AA6539 #45AA39

split-complementary

#397EAA #AA3945 #AA9E39

monochromatic

#1A3A4E #2A5C7C #397EAA #599CC7 #87B8D7

Accessibility & contrast

On white

4.43

#397EAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#397EAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EAA

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EAA	#FFFFFF	#000000	##000000
##397EAA	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7EAC

Deuteranopia (green-blind)

#5A73A9

Tritanopia (blue-blind)

#00898D

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397eaa;
/* rgb */ color: rgb(57, 126, 170);
/* oklch */ color: oklch(56.8% 0.097 239.6);

Tailwind

colors: {
  custom: {
    50: '#7ca3c3',
    500: '#397eaa',
    950: '#000000',
  },
}

SCSS

$custom: #397eaa;
$custom-light: #7ca3c3;
$custom-dark: #000000;

JSON

{
  "hex": "#397eaa",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 170
  },
  "hsl": {
    "h": 203.363,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56822,
    "c": 0.09713,
    "h": 239.6
  },
  "luminance": 0.18694
}

Semantic roles & 50–950 ramp

primary

#397EAA

secondary

#C1987E

accent

#854ED9

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #397EAA

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

Preview Lab → · Contrast checker → · Palette generator →