#398FAB#398FAB

#398FAB is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.0% C 0.091 H 223.0°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#398FAB
RGB	rgb(57, 143, 171)
HSL	hsl(195, 50%, 45%)
HSV	hsv(195, 67%, 67%)
CMYK	cmyk(66.7%, 16.4%, 0%, 32.9%)
CIE-LAB	lab(55.54, -16.72, -22.31)
CIE-LCH	lch(55.54, 27.88, 233.15°)
OKLab	oklab(60.99% -0.0669 -0.0623)
OKLCH	oklch(60.99% 0.091 223)
XYZ	xyz(18.8575, 23.4530, 42.0532)
Luminance	0.2346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398FAB #AB5539

analogous

#39AB8E #398FAB #3956AB

triadic

#398FAB #AB398F #8FAB39

tetradic

#398FAB #8E39AB #AB5539 #56AB39

square

#398FAB #8E39AB #AB5539 #56AB39

split-complementary

#398FAB #AB3956 #AB8E39

monochromatic

#1A424F #2A697D #398FAB #59ADC8 #87C4D7

Accessibility & contrast

On white

3.69

#398FAB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#398FAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398FAB

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398FAB	#FFFFFF	#000000	##000000
##398FAB	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8CAC

Deuteranopia (green-blind)

#6F80AB

Tritanopia (blue-blind)

#009898

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #398fab;
/* rgb */ color: rgb(57, 143, 171);
/* oklch */ color: oklch(61.0% 0.091 223.0);

Tailwind

colors: {
  custom: {
    50: '#7db0c4',
    500: '#398fab',
    950: '#000000',
  },
}

SCSS

$custom: #398fab;
$custom-light: #7db0c4;
$custom-dark: #000000;

JSON

{
  "hex": "#398fab",
  "rgb": {
    "r": 57,
    "g": 143,
    "b": 171
  },
  "hsl": {
    "h": 194.737,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.60988,
    "c": 0.09136,
    "h": 223
  },
  "luminance": 0.23455
}

Semantic roles & 50–950 ramp

primary

#398FAB

secondary

#C18F7F

accent

#704EDA

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1012

muted

#7C7F81

Preview Lab

Preview with #398FAB

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

Preview Lab → · Contrast checker → · Palette generator →