#397FAA#397FAA

#397FAA is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.1% C 0.097 H 238.7°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#397FAA
RGB	rgb(57, 127, 170)
HSL	hsl(203, 50%, 45%)
HSV	hsv(203, 66%, 67%)
CMYK	cmyk(66.5%, 25.3%, 0%, 33.3%)
CIE-LAB	lab(50.63, -8.10, -29.32)
CIE-LCH	lch(50.63, 30.42, 254.56°)
OKLab	oklab(57.06% -0.0502 -0.0824)
OKLCH	oklch(57.06% 0.097 238.7)
XYZ	xyz(16.5296, 18.9492, 40.8088)
Luminance	0.1895 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FAA #AA6439

analogous

#39AA9D #397FAA #3946AA

triadic

#397FAA #AA397F #7FAA39

tetradic

#397FAA #9D39AA #AA6439 #46AA39

square

#397FAA #9D39AA #AA6439 #46AA39

split-complementary

#397FAA #AA3946 #AA9D39

monochromatic

#1A3B4E #2A5D7C #397FAA #599DC7 #87B8D7

Accessibility & contrast

On white

4.38

#397FAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#397FAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FAA

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FAA	#FFFFFF	#000000	##000000
##397FAA	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7FAC

Deuteranopia (green-blind)

#5C74A9

Tritanopia (blue-blind)

#008A8E

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397faa;
/* rgb */ color: rgb(57, 127, 170);
/* oklch */ color: oklch(57.1% 0.097 238.7);

Tailwind

colors: {
  custom: {
    50: '#7ca4c3',
    500: '#397faa',
    950: '#000000',
  },
}

SCSS

$custom: #397faa;
$custom-light: #7ca4c3;
$custom-dark: #000000;

JSON

{
  "hex": "#397faa",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 170
  },
  "hsl": {
    "h": 202.832,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.57062,
    "c": 0.09651,
    "h": 238.7
  },
  "luminance": 0.18951
}

Semantic roles & 50–950 ramp

primary

#397FAA

secondary

#C1977E

accent

#834ED9

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #397FAA

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

Preview Lab → · Contrast checker → · Palette generator →