#397AAC#397AAC

#397AAC is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 56.0% C 0.102 H 244.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#397AAC
RGB	rgb(57, 122, 172)
HSL	hsl(206, 50%, 45%)
HSV	hsv(206, 67%, 67%)
CMYK	cmyk(66.9%, 29.1%, 0%, 32.5%)
CIE-LAB	lab(49.21, -4.48, -32.70)
CIE-LCH	lch(49.21, 33.00, 262.19°)
OKLab	oklab(55.97% -0.0442 -0.0922)
OKLCH	oklch(55.97% 0.102 244.4)
XYZ	xyz(16.0905, 17.7658, 41.6029)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AAC #AC6B39

analogous

#39ACA4 #397AAC #3941AC

triadic

#397AAC #AC397A #7AAC39

tetradic

#397AAC #A439AC #AC6B39 #41AC39

square

#397AAC #A439AC #AC6B39 #41AC39

split-complementary

#397AAC #AC3941 #ACA439

monochromatic

#1B3950 #2A597E #397AAC #5A98C8 #88B5D8

Accessibility & contrast

On white

4.61

#397AAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#397AAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397AAC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AAC	#FFFFFF	#000000	##FFFFFF
##397AAC	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#647BAE

Deuteranopia (green-blind)

#5470AB

Tritanopia (blue-blind)

#00868B

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397aac;
/* rgb */ color: rgb(57, 122, 172);
/* oklch */ color: oklch(56.0% 0.102 244.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#397aac",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 172
  },
  "hsl": {
    "h": 206.087,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.55971,
    "c": 0.10229,
    "h": 244.4
  },
  "luminance": 0.17767
}

Semantic roles & 50–950 ramp

primary

#397AAC

secondary

#C29C7F

accent

#8B4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #397AAC

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

Preview Lab → · Contrast checker → · Palette generator →