#233F91#233F91

#233F91 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.8% C 0.140 H 265.9°. Best body text is #FFFFFF at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#233F91
RGB	rgb(35, 63, 145)
HSL	hsl(225, 61%, 35%)
HSV	hsv(225, 76%, 57%)
CMYK	cmyk(75.9%, 56.6%, 0%, 43.1%)
CIE-LAB	lab(29.30, 19.95, -48.37)
CIE-LCH	lch(29.30, 52.32, 292.42°)
OKLab	oklab(39.78% -0.0099 -0.1394)
OKLCH	oklch(39.78% 0.14 265.9)
XYZ	xyz(7.5797, 5.9558, 27.5327)
Luminance	0.0596 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F91 #917523

analogous

#237691 #233F91 #3E2391

triadic

#233F91 #91233F #3F9123

tetradic

#233F91 #912376 #917523 #23913E

square

#233F91 #912376 #917523 #23913E

split-complementary

#233F91 #913E23 #769123

monochromatic

#0B142E #172A60 #233F91 #2F54C2 #5878D7

Accessibility & contrast

On white

9.58

#233F91 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#233F91 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F91

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F91	#FFFFFF	#000000	##FFFFFF
##233F91	1.00	9.58	2.19	9.58
#FFFFFF	9.58	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A94

Deuteranopia (green-blind)

#00408F

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #233f91;
/* rgb */ color: rgb(35, 63, 145);
/* oklch */ color: oklch(39.8% 0.140 265.9);

Tailwind

colors: {
  custom: {
    50: '#6f73b2',
    500: '#233f91',
    950: '#000000',
  },
}

SCSS

$custom: #233f91;
$custom-light: #6f73b2;
$custom-dark: #000000;

JSON

{
  "hex": "#233f91",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 145
  },
  "hsl": {
    "h": 224.727,
    "s": 61.111,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39783,
    "c": 0.13976,
    "h": 265.9
  },
  "luminance": 0.05957
}

Semantic roles & 50–950 ramp

primary

#233F91

secondary

#BBA155

accent

#BB44E4

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #233F91

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

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