#397DAF#397DAF

#397DAF is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.8% C 0.104 H 243.4°. Best body text is #000000 at 4.73:1 contrast (WCAG AA passes).

Color values

HEX	#397DAF
RGB	rgb(57, 125, 175)
HSL	hsl(205, 51%, 45%)
HSV	hsv(205, 67%, 69%)
CMYK	cmyk(67.4%, 28.6%, 0%, 31.4%)
CIE-LAB	lab(50.25, -5.21, -32.80)
CIE-LCH	lch(50.25, 33.22, 260.97°)
OKLab	oklab(56.84% -0.0464 -0.0925)
OKLCH	oklch(56.84% 0.104 243.4)
XYZ	xyz(16.7559, 18.6305, 43.2621)
Luminance	0.1863 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DAF #AF6B39

analogous

#39AFA6 #397DAF #3942AF

triadic

#397DAF #AF397D #7DAF39

tetradic

#397DAF #A639AF #AF6B39 #42AF39

square

#397DAF #A639AF #AF6B39 #42AF39

split-complementary

#397DAF #AF3942 #AFA639

monochromatic

#1B3B53 #2A5C81 #397DAF #5B9BCA #8AB7D9

Accessibility & contrast

On white

4.44

#397DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.73

#397DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DAF

4.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DAF	#FFFFFF	#000000	##000000
##397DAF	1.00	4.44	4.73	4.73
#FFFFFF	4.44	1.00	21.00	21.00
#000000	4.73	21.00	1.00	1.00
##000000	4.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677EB1

Deuteranopia (green-blind)

#5672AE

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397daf;
/* rgb */ color: rgb(57, 125, 175);
/* oklch */ color: oklch(56.8% 0.104 243.4);

Tailwind

colors: {
  custom: {
    50: '#7ca2c7',
    500: '#397daf',
    950: '#000000',
  },
}

SCSS

$custom: #397daf;
$custom-light: #7ca2c7;
$custom-dark: #000000;

JSON

{
  "hex": "#397daf",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 175
  },
  "hsl": {
    "h": 205.424,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.5684,
    "c": 0.10352,
    "h": 243.4
  },
  "luminance": 0.18632
}

Semantic roles & 50–950 ramp

primary

#397DAF

secondary

#C39D81

accent

#894DDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397DAF

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

Preview Lab → · Contrast checker → · Palette generator →