#233B75#233B75

#233B75 is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.7% C 0.104 H 264.8°. Best body text is #FFFFFF at 10.75:1 contrast (WCAG AA passes).

Color values

HEX	#233B75
RGB	rgb(35, 59, 117)
HSL	hsl(222, 54%, 30%)
HSV	hsv(222, 70%, 46%)
CMYK	cmyk(70.1%, 49.6%, 0%, 54.1%)
CIE-LAB	lab(26.07, 11.68, -36.13)
CIE-LCH	lch(26.07, 37.97, 287.92°)
OKLab	oklab(36.67% -0.0093 -0.1035)
OKLCH	oklch(36.67% 0.104 264.8)
XYZ	xyz(5.4669, 4.7691, 17.4586)
Luminance	0.0477 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B75 #755D23

analogous

#236475 #233B75 #342375

triadic

#233B75 #75233B #3B7523

tetradic

#233B75 #752364 #755D23 #237534

square

#233B75 #752364 #755D23 #237534

split-complementary

#233B75 #753423 #647523

monochromatic

#070C18 #152346 #233B75 #3153A4 #4A6FC9

Accessibility & contrast

On white

10.75

#233B75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#233B75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B75

10.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B75	#FFFFFF	#000000	##FFFFFF
##233B75	1.00	10.75	1.95	10.75
#FFFFFF	10.75	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4277

Deuteranopia (green-blind)

#0B3A74

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #233b75;
/* rgb */ color: rgb(35, 59, 117);
/* oklch */ color: oklch(36.7% 0.104 264.8);

Tailwind

colors: {
  custom: {
    50: '#68709d',
    500: '#233b75',
    950: '#000000',
  },
}

SCSS

$custom: #233b75;
$custom-light: #68709d;
$custom-dark: #000000;

JSON

{
  "hex": "#233b75",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 117
  },
  "hsl": {
    "h": 222.439,
    "s": 53.947,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3667,
    "c": 0.10388,
    "h": 264.8
  },
  "luminance": 0.0477
}

Semantic roles & 50–950 ramp

primary

#233B75

secondary

#A88D4C

accent

#B24ADD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #233B75

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

Preview Lab → · Contrast checker → · Palette generator →