#23478B#23478B

#23478B is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.1% C 0.121 H 261.7°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#23478B
RGB	rgb(35, 71, 139)
HSL	hsl(219, 60%, 34%)
HSV	hsv(219, 75%, 55%)
CMYK	cmyk(74.8%, 48.9%, 0%, 45.5%)
CIE-LAB	lab(31.18, 12.10, -41.65)
CIE-LCH	lch(31.18, 43.37, 286.21°)
OKLab	oklab(41.07% -0.0175 -0.1195)
OKLCH	oklch(41.07% 0.121 261.7)
XYZ	xyz(7.6049, 6.7271, 25.3187)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#23478B #8B6723

analogous

#237B8B #23478B #33238B

triadic

#23478B #8B2347 #478B23

tetradic

#23478B #8B237B #8B6723 #238B33

square

#23478B #8B237B #8B6723 #238B33

split-complementary

#23478B #8B3323 #7B8B23

monochromatic

#0A1529 #172E5A #23478B #2F60BC #5481D4

Accessibility & contrast

On white

8.95

#23478B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#23478B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #23478B

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##23478B	#FFFFFF	#000000	##FFFFFF
##23478B	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224E8E

Deuteranopia (green-blind)

#05458A

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #23478b;
/* rgb */ color: rgb(35, 71, 139);
/* oklch */ color: oklch(41.1% 0.121 261.7);

Tailwind

colors: {
  custom: {
    50: '#6d79ad',
    500: '#23478b',
    950: '#000000',
  },
}

SCSS

$custom: #23478b;
$custom-light: #6d79ad;
$custom-dark: #000000;

JSON

{
  "hex": "#23478b",
  "rgb": {
    "r": 35,
    "g": 71,
    "b": 139
  },
  "hsl": {
    "h": 219.231,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.4107,
    "c": 0.12076,
    "h": 261.7
  },
  "luminance": 0.06728
}

Semantic roles & 50–950 ramp

primary

#23478B

secondary

#B89552

accent

#AC45E3

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#080910

muted

#7B7B7F

Preview Lab

Preview with #23478B

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

Preview Lab → · Contrast checker → · Palette generator →