#398ACC#398ACC

#398ACC is a mid, vivid cyan. Relative luminance 0.234; OKLCH L 61.4% C 0.127 H 246.6°. Best body text is #000000 at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#398ACC
RGB	rgb(57, 138, 204)
HSL	hsl(207, 59%, 51%)
HSV	hsv(207, 72%, 80%)
CMYK	cmyk(72.1%, 32.4%, 0%, 20%)
CIE-LAB	lab(55.49, -2.67, -41.16)
CIE-LCH	lch(55.49, 41.25, 266.28°)
OKLab	oklab(61.42% -0.0505 -0.1167)
OKLCH	oklch(61.42% 0.127 246.6)
XYZ	xyz(21.6708, 23.4040, 60.4904)
Luminance	0.2341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#398ACC #CC7B39

analogous

#39CCC4 #398ACC #3940CC

triadic

#398ACC #CC398A #8ACC39

tetradic

#398ACC #C439CC #CC7B39 #40CC39

square

#398ACC #C439CC #CC7B39 #40CC39

split-complementary

#398ACC #CC3940 #CCC439

monochromatic

#1C496E #296A9F #398ACC #6AA7D9 #9AC4E5

Accessibility & contrast

On white

3.70

#398ACC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.68

#398ACC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #398ACC

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##398ACC	#FFFFFF	#000000	##000000
##398ACC	1.00	3.70	5.68	5.68
#FFFFFF	3.70	1.00	21.00	21.00
#000000	5.68	21.00	1.00	1.00
##000000	5.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8DCF

Deuteranopia (green-blind)

#577FCB

Tritanopia (blue-blind)

#009AA2

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #398acc;
/* rgb */ color: rgb(57, 138, 204);
/* oklch */ color: oklch(61.4% 0.127 246.6);

Tailwind

colors: {
  custom: {
    50: '#81abdc',
    500: '#398acc',
    950: '#000000',
  },
}

SCSS

$custom: #398acc;
$custom-light: #81abdc;
$custom-dark: #000000;

JSON

{
  "hex": "#398acc",
  "rgb": {
    "r": 57,
    "g": 138,
    "b": 204
  },
  "hsl": {
    "h": 206.939,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.61424,
    "c": 0.12717,
    "h": 246.6
  },
  "luminance": 0.23406
}

Semantic roles & 50–950 ramp

primary

#398ACC

secondary

#D1AD90

accent

#8C46E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #398ACC

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

Preview Lab → · Contrast checker → · Palette generator →