#397FAD#397FAD

#397FAD is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.2% C 0.100 H 240.5°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#397FAD
RGB	rgb(57, 127, 173)
HSL	hsl(204, 50%, 45%)
HSV	hsv(204, 67%, 68%)
CMYK	cmyk(67.1%, 26.6%, 0%, 32.2%)
CIE-LAB	lab(50.76, -7.07, -30.85)
CIE-LCH	lch(50.76, 31.65, 257.09°)
OKLab	oklab(57.21% -0.0491 -0.0869)
OKLCH	oklch(57.21% 0.1 240.5)
XYZ	xyz(16.8167, 19.0640, 42.3205)
Luminance	0.1907 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FAD #AD6739

analogous

#39ADA1 #397FAD #3945AD

triadic

#397FAD #AD397F #7FAD39

tetradic

#397FAD #A139AD #AD6739 #45AD39

square

#397FAD #A139AD #AD6739 #45AD39

split-complementary

#397FAD #AD3945 #ADA139

monochromatic

#1B3B51 #2A5D7F #397FAD #5A9DC9 #88B8D8

Accessibility & contrast

On white

4.36

#397FAD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#397FAD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FAD

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FAD	#FFFFFF	#000000	##000000
##397FAD	1.00	4.36	4.81	4.81
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7FAF

Deuteranopia (green-blind)

#5A74AC

Tritanopia (blue-blind)

#008A8F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fad;
/* rgb */ color: rgb(57, 127, 173);
/* oklch */ color: oklch(57.2% 0.100 240.5);

Tailwind

colors: {
  custom: {
    50: '#7ca4c5',
    500: '#397fad',
    950: '#000000',
  },
}

SCSS

$custom: #397fad;
$custom-light: #7ca4c5;
$custom-dark: #000000;

JSON

{
  "hex": "#397fad",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 173
  },
  "hsl": {
    "h": 203.793,
    "s": 50.435,
    "l": 45.098
  },
  "oklch": {
    "l": 0.57213,
    "c": 0.0998,
    "h": 240.5
  },
  "luminance": 0.19066
}

Semantic roles & 50–950 ramp

primary

#397FAD

secondary

#C29A80

accent

#854EDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F13

muted

#7C7F82

Preview Lab

Preview with #397FAD

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

Preview Lab → · Contrast checker → · Palette generator →