#397FB1#397FB1

#397FB1 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.4% C 0.104 H 242.7°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#397FB1
RGB	rgb(57, 127, 177)
HSL	hsl(205, 51%, 46%)
HSV	hsv(205, 68%, 69%)
CMYK	cmyk(67.8%, 28.2%, 0%, 30.6%)
CIE-LAB	lab(50.94, -5.69, -32.88)
CIE-LCH	lch(50.94, 33.37, 260.18°)
OKLab	oklab(57.42% -0.0478 -0.0927)
OKLCH	oklch(57.42% 0.104 242.7)
XYZ	xyz(17.2095, 19.2211, 44.3895)
Luminance	0.1922 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB1 #B16B39

analogous

#39B1A7 #397FB1 #3943B1

triadic

#397FB1 #B1397F #7FB139

tetradic

#397FB1 #A739B1 #B16B39 #43B139

square

#397FB1 #A739B1 #B16B39 #43B139

split-complementary

#397FB1 #B13943 #B1A739

monochromatic

#1B3D54 #2A5E83 #397FB1 #5D9DCB #8BB9DA

Accessibility & contrast

On white

4.33

#397FB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#397FB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB1

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB1	#FFFFFF	#000000	##000000
##397FB1	1.00	4.33	4.84	4.84
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6880B3

Deuteranopia (green-blind)

#5874B0

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fb1;
/* rgb */ color: rgb(57, 127, 177);
/* oklch */ color: oklch(57.4% 0.104 242.7);

Tailwind

colors: {
  custom: {
    50: '#7da4c8',
    500: '#397fb1',
    950: '#000000',
  },
}

SCSS

$custom: #397fb1;
$custom-light: #7da4c8;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb1",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 177
  },
  "hsl": {
    "h": 205,
    "s": 51.282,
    "l": 45.882
  },
  "oklch": {
    "l": 0.57418,
    "c": 0.10434,
    "h": 242.7
  },
  "luminance": 0.19223
}

Semantic roles & 50–950 ramp

primary

#397FB1

secondary

#C49D82

accent

#884DDB

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB1

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

Preview Lab → · Contrast checker → · Palette generator →