#233F8E#233F8E

#233F8E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.5% C 0.135 H 265.7°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#233F8E
RGB	rgb(35, 63, 142)
HSL	hsl(224, 60%, 35%)
HSV	hsv(224, 75%, 56%)
CMYK	cmyk(75.4%, 55.6%, 0%, 44.3%)
CIE-LAB	lab(29.07, 18.77, -46.90)
CIE-LCH	lch(29.07, 50.52, 291.82°)
OKLab	oklab(39.53% -0.0101 -0.1351)
OKLCH	oklch(39.53% 0.135 265.7)
XYZ	xyz(7.3514, 5.8645, 26.3305)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F8E #8E7223

analogous

#23758E #233F8E #3D238E

triadic

#233F8E #8E233F #3F8E23

tetradic

#233F8E #8E2375 #8E7223 #238E3D

square

#233F8E #8E2375 #8E7223 #238E3D

split-complementary

#233F8E #8E3D23 #758E23

monochromatic

#0B132C #17295D #233F8E #2F55BF #5677D5

Accessibility & contrast

On white

9.66

#233F8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#233F8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F8E

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F8E	#FFFFFF	#000000	##FFFFFF
##233F8E	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A91

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005260

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #233f8e;
/* rgb */ color: rgb(35, 63, 142);
/* oklch */ color: oklch(39.5% 0.135 265.7);

Tailwind

colors: {
  custom: {
    50: '#6e73b0',
    500: '#233f8e',
    950: '#000000',
  },
}

SCSS

$custom: #233f8e;
$custom-light: #6e73b0;
$custom-dark: #000000;

JSON

{
  "hex": "#233f8e",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 142
  },
  "hsl": {
    "h": 224.299,
    "s": 60.452,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39534,
    "c": 0.13548,
    "h": 265.7
  },
  "luminance": 0.05865
}

Semantic roles & 50–950 ramp

primary

#233F8E

secondary

#B99F53

accent

#BA44E4

background

#F7F6FA

surface

#EDECF5

border

#C8C7CF

text

#080810

muted

#7B7B7F

Preview Lab

Preview with #233F8E

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

Preview Lab → · Contrast checker → · Palette generator →