#233C9D#233C9D

#233C9D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.2% C 0.160 H 267.4°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#233C9D
RGB	rgb(35, 60, 157)
HSL	hsl(228, 64%, 38%)
HSV	hsv(228, 78%, 62%)
CMYK	cmyk(77.7%, 61.8%, 0%, 38.4%)
CIE-LAB	lab(29.47, 26.66, -55.42)
CIE-LCH	lch(29.47, 61.50, 295.69°)
OKLab	oklab(40.22% -0.0073 -0.1602)
OKLCH	oklch(40.22% 0.16 267.4)
XYZ	xyz(8.3927, 6.0224, 32.6119)
Luminance	0.0602 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C9D #9D8423

analogous

#23799D #233C9D #47239D

triadic

#233C9D #9D233C #3C9D23

tetradic

#233C9D #9D2379 #9D8423 #239D47

square

#233C9D #9D2379 #9D8423 #239D47

split-complementary

#233C9D #9D4723 #799D23

monochromatic

#0D1639 #18296B #233C9D #2E4FCF #5F79DB

Accessibility & contrast

On white

9.53

#233C9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#233C9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C9D

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C9D	#FFFFFF	#000000	##FFFFFF
##233C9D	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004BA0

Deuteranopia (green-blind)

#00409B

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233c9d;
/* rgb */ color: rgb(35, 60, 157);
/* oklch */ color: oklch(40.2% 0.160 267.4);

Tailwind

colors: {
  custom: {
    50: '#7271bb',
    500: '#233c9d',
    950: '#000000',
  },
}

SCSS

$custom: #233c9d;
$custom-light: #7271bb;
$custom-dark: #000000;

JSON

{
  "hex": "#233c9d",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 157
  },
  "hsl": {
    "h": 227.705,
    "s": 63.542,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40217,
    "c": 0.16034,
    "h": 267.4
  },
  "luminance": 0.06023
}

Semantic roles & 50–950 ramp

primary

#233C9D

secondary

#C0AC5C

accent

#C541E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233C9D

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

Preview Lab → · Contrast checker → · Palette generator →