#23297B#23297B

#23297B is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.4% C 0.137 H 273.1°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#23297B
RGB	rgb(35, 41, 123)
HSL	hsl(236, 56%, 31%)
HSV	hsv(236, 72%, 48%)
CMYK	cmyk(71.5%, 66.7%, 0%, 51.8%)
CIE-LAB	lab(21.48, 26.55, -47.38)
CIE-LCH	lch(21.48, 54.31, 299.26°)
OKLab	oklab(33.38% 0.0074 -0.1368)
OKLCH	oklch(33.38% 0.137 273.1)
XYZ	xyz(5.0600, 3.3728, 19.1194)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23297B #7B7523

analogous

#23557B #23297B #49237B

triadic

#23297B #7B2329 #297B23

tetradic

#23297B #7B2355 #7B7523 #237B49

square

#23297B #7B2355 #7B7523 #237B49

split-complementary

#23297B #7B4923 #557B23

monochromatic

#08091C #15194B #23297B #3139AB #4C55CC

Accessibility & contrast

On white

12.54

#23297B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#23297B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23297B

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23297B	#FFFFFF	#000000	##FFFFFF
##23297B	1.00	12.54	1.67	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387E

Deuteranopia (green-blind)

#003079

Tritanopia (blue-blind)

#003E4E

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #23297b;
/* rgb */ color: rgb(35, 41, 123);
/* oklch */ color: oklch(33.4% 0.137 273.1);

Tailwind

colors: {
  custom: {
    50: '#6b63a2',
    500: '#23297b',
    950: '#000000',
  },
}

SCSS

$custom: #23297b;
$custom-light: #6b63a2;
$custom-dark: #000000;

JSON

{
  "hex": "#23297b",
  "rgb": {
    "r": 35,
    "g": 41,
    "b": 123
  },
  "hsl": {
    "h": 235.909,
    "s": 55.696,
    "l": 30.98
  },
  "oklch": {
    "l": 0.33384,
    "c": 0.13698,
    "h": 273.1
  },
  "luminance": 0.03373
}

Semantic roles & 50–950 ramp

primary

#23297B

secondary

#AEA74C

accent

#D549DF

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #23297B

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

Preview Lab → · Contrast checker → · Palette generator →