#397ECE#397ECE

#397ECE is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.8% C 0.141 H 254.1°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#397ECE
RGB	rgb(57, 126, 206)
HSL	hsl(212, 60%, 52%)
HSV	hsv(212, 72%, 81%)
CMYK	cmyk(72.3%, 38.8%, 0%, 19.2%)
CIE-LAB	lab(52.11, 5.21, -47.63)
CIE-LCH	lch(52.11, 47.92, 276.24°)
OKLab	oklab(58.81% -0.0388 -0.1358)
OKLCH	oklch(58.81% 0.141 254.1)
XYZ	xyz(20.2847, 20.2456, 61.2193)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ECE #CE8939

analogous

#39C8CE #397ECE #3F39CE

triadic

#397ECE #CE397E #7ECE39

tetradic

#397ECE #CE39C8 #CE8939 #39CE3F

square

#397ECE #CE39C8 #CE8939 #39CE3F

split-complementary

#397ECE #CE3F39 #C8CE39

monochromatic

#1C4371 #2860A2 #397ECE #6A9EDA #9BBEE6

Accessibility & contrast

On white

4.16

#397ECE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#397ECE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ECE

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ECE	#FFFFFF	#000000	##000000
##397ECE	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5984D1

Deuteranopia (green-blind)

#4276CC

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397ece;
/* rgb */ color: rgb(57, 126, 206);
/* oklch */ color: oklch(58.8% 0.141 254.1);

Tailwind

colors: {
  custom: {
    50: '#82a2dd',
    500: '#397ece',
    950: '#000000',
  },
}

SCSS

$custom: #397ece;
$custom-light: #82a2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#397ece",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 206
  },
  "hsl": {
    "h": 212.215,
    "s": 60.324,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58814,
    "c": 0.14123,
    "h": 254.1
  },
  "luminance": 0.20248
}

Semantic roles & 50–950 ramp

primary

#397ECE

secondary

#D2B491

accent

#9A44E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397ECE

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

Preview Lab → · Contrast checker → · Palette generator →