#397E8E#397E8E

#397E8E is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.5% C 0.073 H 215.2°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#397E8E
RGB	rgb(57, 126, 142)
HSL	hsl(191, 43%, 39%)
HSV	hsv(191, 60%, 56%)
CMYK	cmyk(59.9%, 11.3%, 0%, 44.3%)
CIE-LAB	lab(49.18, -16.72, -15.21)
CIE-LCH	lch(49.18, 22.60, 222.28°)
OKLab	oklab(55.53% -0.0598 -0.0422)
OKLCH	oklch(55.53% 0.073 215.2)
XYZ	xyz(14.0287, 17.7432, 28.2714)
Luminance	0.1774 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397E8E #8E4939

analogous

#398E74 #397E8E #39548E

triadic

#397E8E #8E397E #7E8E39

tetradic

#397E8E #74398E #8E4939 #548E39

square

#397E8E #74398E #8E4939 #548E39

split-complementary

#397E8E #8E3954 #8E7439

monochromatic

#163137 #275762 #397E8E #4DA3B7 #78BAC9

Accessibility & contrast

On white

4.62

#397E8E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#397E8E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397E8E

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397E8E	#FFFFFF	#000000	##FFFFFF
##397E8E	1.00	4.62	4.55	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#737A8F

Deuteranopia (green-blind)

#66718E

Tritanopia (blue-blind)

#008483

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397e8e;
/* rgb */ color: rgb(57, 126, 142);
/* oklch */ color: oklch(55.5% 0.073 215.2);

Tailwind

colors: {
  custom: {
    50: '#78a3af',
    500: '#397e8e',
    950: '#000000',
  },
}

SCSS

$custom: #397e8e;
$custom-light: #78a3af;
$custom-dark: #000000;

JSON

{
  "hex": "#397e8e",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 142
  },
  "hsl": {
    "h": 191.294,
    "s": 42.714,
    "l": 39.02
  },
  "oklch": {
    "l": 0.55534,
    "c": 0.07318,
    "h": 215.2
  },
  "luminance": 0.17745
}

Semantic roles & 50–950 ramp

primary

#397E8E

secondary

#B27D71

accent

#6D55D2

background

#F7FAFA

surface

#EEF3F4

border

#C9CDCE

text

#090F10

muted

#7B7F7F

Preview Lab

Preview with #397E8E

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

Preview Lab → · Contrast checker → · Palette generator →