#397EAF#397EAF

#397EAF is a mid, moderate cyan. Relative luminance 0.189; OKLCH L 57.1% C 0.103 H 242.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#397EAF
RGB	rgb(57, 126, 175)
HSL	hsl(205, 51%, 45%)
HSV	hsv(205, 67%, 69%)
CMYK	cmyk(67.4%, 28%, 0%, 31.4%)
CIE-LAB	lab(50.55, -5.80, -32.33)
CIE-LCH	lch(50.55, 32.85, 259.84°)
OKLab	oklab(57.08% -0.0474 -0.0912)
OKLCH	oklch(57.08% 0.103 242.5)
XYZ	xyz(16.8831, 18.8849, 43.3045)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EAF #AF6A39

analogous

#39AFA5 #397EAF #3943AF

triadic

#397EAF #AF397E #7EAF39

tetradic

#397EAF #A539AF #AF6A39 #43AF39

square

#397EAF #A539AF #AF6A39 #43AF39

split-complementary

#397EAF #AF3943 #AFA539

monochromatic

#1B3C53 #2A5D81 #397EAF #5B9CCA #8AB8D9

Accessibility & contrast

On white

4.40

#397EAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#397EAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EAF

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EAF	#FFFFFF	#000000	##000000
##397EAF	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687FB1

Deuteranopia (green-blind)

#5873AE

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397eaf;
/* rgb */ color: rgb(57, 126, 175);
/* oklch */ color: oklch(57.1% 0.103 242.5);

Tailwind

colors: {
  custom: {
    50: '#7ca3c7',
    500: '#397eaf',
    950: '#000000',
  },
}

SCSS

$custom: #397eaf;
$custom-light: #7ca3c7;
$custom-dark: #000000;

JSON

{
  "hex": "#397eaf",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 175
  },
  "hsl": {
    "h": 204.915,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.57077,
    "c": 0.10277,
    "h": 242.5
  },
  "luminance": 0.18887
}

Semantic roles & 50–950 ramp

primary

#397EAF

secondary

#C39C81

accent

#884DDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397EAF

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

Preview Lab → · Contrast checker → · Palette generator →