#1539CA#1539CA

#1539CA is a dark, highly saturated blue. Relative luminance 0.073; OKLCH L 43.7% C 0.224 H 265.4°. Best body text is #FFFFFF at 8.50:1 contrast (WCAG AA passes).

Color values

HEX	#1539CA
RGB	rgb(21, 57, 202)
HSL	hsl(228, 81%, 44%)
HSV	hsv(228, 90%, 79%)
CMYK	cmyk(89.6%, 71.8%, 0%, 20.8%)
CIE-LAB	lab(32.59, 44.36, -77.07)
CIE-LCH	lch(32.59, 88.92, 299.93°)
OKLab	oklab(43.67% -0.0181 -0.2236)
OKLCH	oklch(43.67% 0.224 265.4)
XYZ	xyz(12.4293, 7.3483, 56.6289)
Luminance	0.0735 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1539CA #CAA615

analogous

#1593CA #1539CA #4B15CA

triadic

#1539CA #CA1539 #39CA15

tetradic

#1539CA #CA1593 #CAA615 #15CA4B

square

#1539CA #CA1593 #CAA615 #15CA4B

split-complementary

#1539CA #CA4B15 #93CA15

monochromatic

#091A5B #0F2993 #1539CA #3257EA #6A84EF

Accessibility & contrast

On white

8.50

#1539CA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.47

#1539CA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1539CA

8.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1539CA	#FFFFFF	#000000	##FFFFFF
##1539CA	1.00	8.50	2.47	8.50
#FFFFFF	8.50	1.00	21.00	1.00
#000000	2.47	21.00	1.00	21.00
##FFFFFF	8.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055CE

Deuteranopia (green-blind)

#0044C7

Tritanopia (blue-blind)

#00637E

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1539ca;
/* rgb */ color: rgb(21, 57, 202);
/* oklch */ color: oklch(43.7% 0.224 265.4);

Tailwind

colors: {
  custom: {
    50: '#7b70db',
    500: '#1539ca',
    950: '#000000',
  },
}

SCSS

$custom: #1539ca;
$custom-light: #7b70db;
$custom-dark: #000000;

JSON

{
  "hex": "#1539ca",
  "rgb": {
    "r": 21,
    "g": 57,
    "b": 202
  },
  "hsl": {
    "h": 228.066,
    "s": 81.166,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43667,
    "c": 0.22429,
    "h": 265.4
  },
  "luminance": 0.0735
}

Semantic roles & 50–950 ramp

primary

#1539CA

secondary

#D5BF66

accent

#D030F8

background

#F8F6FD

surface

#F0ECFB

border

#CBC7D4

text

#0C0715

muted

#7D7A83

Preview Lab

Preview with #1539CA

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

Preview Lab → · Contrast checker → · Palette generator →