#233789#233789

#233789 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.4% C 0.139 H 268.4°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#233789
RGB	rgb(35, 55, 137)
HSL	hsl(228, 59%, 34%)
HSV	hsv(228, 74%, 54%)
CMYK	cmyk(74.5%, 59.9%, 0%, 46.3%)
CIE-LAB	lab(26.43, 22.33, -48.09)
CIE-LCH	lch(26.43, 53.02, 294.91°)
OKLab	oklab(37.43% -0.0039 -0.1387)
OKLCH	oklch(37.43% 0.139 268.4)
XYZ	xyz(6.5731, 4.8952, 24.2605)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233789 #897523

analogous

#236A89 #233789 #422389

triadic

#233789 #892337 #378923

tetradic

#233789 #89236A #897523 #238942

square

#233789 #89236A #897523 #238942

split-complementary

#233789 #894223 #6A8923

monochromatic

#0A1028 #172358 #233789 #2F4BBA #536CD3

Accessibility & contrast

On white

10.61

#233789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#233789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233789

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233789	#FFFFFF	#000000	##FFFFFF
##233789	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233789;
/* rgb */ color: rgb(35, 55, 137);
/* oklch */ color: oklch(37.4% 0.139 268.4);

Tailwind

colors: {
  custom: {
    50: '#6d6dac',
    500: '#233789',
    950: '#000000',
  },
}

SCSS

$custom: #233789;
$custom-light: #6d6dac;
$custom-dark: #000000;

JSON

{
  "hex": "#233789",
  "rgb": {
    "r": 35,
    "g": 55,
    "b": 137
  },
  "hsl": {
    "h": 228.235,
    "s": 59.302,
    "l": 33.725
  },
  "oklch": {
    "l": 0.3743,
    "c": 0.13877,
    "h": 268.4
  },
  "luminance": 0.04896
}

Semantic roles & 50–950 ramp

primary

#233789

secondary

#B7A351

accent

#C445E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #233789

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

Preview Lab → · Contrast checker → · Palette generator →