#232F8B#232F8B

#232F8B is a dark, vivid blue. Relative luminance 0.043; OKLCH L 36.0% C 0.152 H 270.7°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#232F8B
RGB	rgb(35, 47, 139)
HSL	hsl(233, 60%, 34%)
HSV	hsv(233, 75%, 55%)
CMYK	cmyk(74.8%, 66.2%, 0%, 45.5%)
CIE-LAB	lab(24.49, 28.54, -52.50)
CIE-LCH	lch(24.49, 59.75, 298.53°)
OKLab	oklab(36.05% 0.002 -0.1517)
OKLCH	oklch(36.05% 0.152 270.7)
XYZ	xyz(6.3683, 4.2538, 24.9065)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#232F8B #8B7F23

analogous

#23638B #232F8B #4B238B

triadic

#232F8B #8B232F #2F8B23

tetradic

#232F8B #8B2363 #8B7F23 #238B4B

square

#232F8B #8B2363 #8B7F23 #238B4B

split-complementary

#232F8B #8B4B23 #638B23

monochromatic

#0A0E29 #171E5A #232F8B #2F40BC #5463D4

Accessibility & contrast

On white

11.35

#232F8B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#232F8B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #232F8B

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##232F8B	#FFFFFF	#000000	##FFFFFF
##232F8B	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003F8E

Deuteranopia (green-blind)

#003589

Tritanopia (blue-blind)

#004758

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #232f8b;
/* rgb */ color: rgb(35, 47, 139);
/* oklch */ color: oklch(36.0% 0.152 270.7);

Tailwind

colors: {
  custom: {
    50: '#6e67ae',
    500: '#232f8b',
    950: '#000000',
  },
}

SCSS

$custom: #232f8b;
$custom-light: #6e67ae;
$custom-dark: #000000;

JSON

{
  "hex": "#232f8b",
  "rgb": {
    "r": 35,
    "g": 47,
    "b": 139
  },
  "hsl": {
    "h": 233.077,
    "s": 59.77,
    "l": 34.118
  },
  "oklch": {
    "l": 0.36049,
    "c": 0.15175,
    "h": 270.7
  },
  "luminance": 0.04254
}

Semantic roles & 50–950 ramp

primary

#232F8B

secondary

#B8AC52

accent

#D145E3

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #232F8B

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

Preview Lab → · Contrast checker → · Palette generator →