#233C9E#233C9E

#233C9E is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.162 H 267.4°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#233C9E
RGB	rgb(35, 60, 158)
HSL	hsl(228, 64%, 38%)
HSV	hsv(228, 78%, 62%)
CMYK	cmyk(77.8%, 62%, 0%, 38%)
CIE-LAB	lab(29.56, 27.05, -55.89)
CIE-LCH	lch(29.56, 62.09, 295.83°)
OKLab	oklab(40.31% -0.0073 -0.1615)
OKLCH	oklch(40.31% 0.162 267.4)
XYZ	xyz(8.4784, 6.0567, 33.0633)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C9E #9E8523

analogous

#23799E #233C9E #47239E

triadic

#233C9E #9E233C #3C9E23

tetradic

#233C9E #9E2379 #9E8523 #239E47

square

#233C9E #9E2379 #9E8523 #239E47

split-complementary

#233C9E #9E4723 #799E23

monochromatic

#0D163A #18296C #233C9E #2E4FD0 #6079DC

Accessibility & contrast

On white

9.50

#233C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#233C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C9E

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C9E	#FFFFFF	#000000	##FFFFFF
##233C9E	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA1

Deuteranopia (green-blind)

#00409C

Tritanopia (blue-blind)

#005567

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233c9e;
/* rgb */ color: rgb(35, 60, 158);
/* oklch */ color: oklch(40.3% 0.162 267.4);

Tailwind

colors: {
  custom: {
    50: '#7271bc',
    500: '#233c9e',
    950: '#000000',
  },
}

SCSS

$custom: #233c9e;
$custom-light: #7271bc;
$custom-dark: #000000;

JSON

{
  "hex": "#233c9e",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 158
  },
  "hsl": {
    "h": 227.805,
    "s": 63.731,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40307,
    "c": 0.16171,
    "h": 267.4
  },
  "luminance": 0.06058
}

Semantic roles & 50–950 ramp

primary

#233C9E

secondary

#C1AC5C

accent

#C541E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233C9E

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

Preview Lab → · Contrast checker → · Palette generator →