#397AAD#397AAD

#397AAD is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.0% C 0.103 H 244.9°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#397AAD
RGB	rgb(57, 122, 173)
HSL	hsl(206, 50%, 45%)
HSV	hsv(206, 67%, 68%)
CMYK	cmyk(67.1%, 29.5%, 0%, 32.2%)
CIE-LAB	lab(49.26, -4.14, -33.20)
CIE-LCH	lch(49.26, 33.46, 262.90°)
OKLab	oklab(56.02% -0.0439 -0.0937)
OKLCH	oklch(56.02% 0.103 244.9)
XYZ	xyz(16.1869, 17.8044, 42.1106)
Luminance	0.1781 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AAD #AD6C39

analogous

#39ADA6 #397AAD #3940AD

triadic

#397AAD #AD397A #7AAD39

tetradic

#397AAD #A639AD #AD6C39 #40AD39

square

#397AAD #A639AD #AD6C39 #40AD39

split-complementary

#397AAD #AD3940 #ADA639

monochromatic

#1B3951 #2A5A7F #397AAD #5A98C9 #88B5D8

Accessibility & contrast

On white

4.60

#397AAD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#397AAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397AAD

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AAD	#FFFFFF	#000000	##FFFFFF
##397AAD	1.00	4.60	4.56	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637BAF

Deuteranopia (green-blind)

#5370AC

Tritanopia (blue-blind)

#00868C

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397aad;
/* rgb */ color: rgb(57, 122, 173);
/* oklch */ color: oklch(56.0% 0.103 244.9);

Tailwind

colors: {
  custom: {
    50: '#7ca0c5',
    500: '#397aad',
    950: '#000000',
  },
}

SCSS

$custom: #397aad;
$custom-light: #7ca0c5;
$custom-dark: #000000;

JSON

{
  "hex": "#397aad",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 173
  },
  "hsl": {
    "h": 206.379,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56024,
    "c": 0.10348,
    "h": 244.9
  },
  "luminance": 0.17806
}

Semantic roles & 50–950 ramp

primary

#397AAD

secondary

#C29D80

accent

#8B4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #397AAD

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

Preview Lab → · Contrast checker → · Palette generator →