#23539F#23539F

#23539F is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.3% C 0.134 H 259.4°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#23539F
RGB	rgb(35, 83, 159)
HSL	hsl(217, 64%, 38%)
HSV	hsv(217, 78%, 62%)
CMYK	cmyk(78%, 47.8%, 0%, 37.6%)
CIE-LAB	lab(36.07, 11.92, -45.92)
CIE-LCH	lch(36.07, 47.44, 284.56°)
OKLab	oklab(45.26% -0.0247 -0.1318)
OKLCH	oklch(45.26% 0.134 259.4)
XYZ	xyz(10.0421, 9.0459, 34.0109)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23539F #9F6F23

analogous

#23919F #23539F #31239F

triadic

#23539F #9F2353 #539F23

tetradic

#23539F #9F2391 #9F6F23 #239F31

square

#23539F #9F2391 #9F6F23 #239F31

split-complementary

#23539F #9F3123 #919F23

monochromatic

#0D1F3B #18396D #23539F #2E6DD1 #6090DC

Accessibility & contrast

On white

7.47

#23539F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#23539F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23539F

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23539F	#FFFFFF	#000000	##FFFFFF
##23539F	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295BA2

Deuteranopia (green-blind)

#05509D

Tritanopia (blue-blind)

#006571

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #23539f;
/* rgb */ color: rgb(35, 83, 159);
/* oklch */ color: oklch(45.3% 0.134 259.4);

Tailwind

colors: {
  custom: {
    50: '#7182bc',
    500: '#23539f',
    950: '#000000',
  },
}

SCSS

$custom: #23539f;
$custom-light: #7182bc;
$custom-dark: #000000;

JSON

{
  "hex": "#23539f",
  "rgb": {
    "r": 35,
    "g": 83,
    "b": 159
  },
  "hsl": {
    "h": 216.774,
    "s": 63.918,
    "l": 38.039
  },
  "oklch": {
    "l": 0.45263,
    "c": 0.13414,
    "h": 259.4
  },
  "luminance": 0.09047
}

Semantic roles & 50–950 ramp

primary

#23539F

secondary

#C19A5D

accent

#A741E7

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A12

muted

#7B7C81

Preview Lab

Preview with #23539F

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

Preview Lab → · Contrast checker → · Palette generator →