#233B7D#233B7D

#233B7D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.116 H 265.9°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#233B7D
RGB	rgb(35, 59, 125)
HSL	hsl(224, 56%, 31%)
HSV	hsv(224, 72%, 49%)
CMYK	cmyk(72%, 52.8%, 0%, 51%)
CIE-LAB	lab(26.64, 14.84, -40.26)
CIE-LCH	lch(26.64, 42.91, 290.23°)
OKLab	oklab(37.29% -0.0082 -0.1156)
OKLCH	oklch(37.29% 0.116 265.9)
XYZ	xyz(5.9575, 4.9653, 20.0425)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B7D #7D6523

analogous

#23687D #233B7D #38237D

triadic

#233B7D #7D233B #3B7D23

tetradic

#233B7D #7D2368 #7D6523 #237D38

square

#233B7D #7D2368 #7D6523 #237D38

split-complementary

#233B7D #7D3823 #687D23

monochromatic

#080E1D #16244D #233B7D #3052AD #4D6FCD

Accessibility & contrast

On white

10.54

#233B7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#233B7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B7D

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B7D	#FFFFFF	#000000	##FFFFFF
##233B7D	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#13437F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233b7d;
/* rgb */ color: rgb(35, 59, 125);
/* oklch */ color: oklch(37.3% 0.116 265.9);

Tailwind

colors: {
  custom: {
    50: '#6a70a3',
    500: '#233b7d',
    950: '#000000',
  },
}

SCSS

$custom: #233b7d;
$custom-light: #6a70a3;
$custom-dark: #000000;

JSON

{
  "hex": "#233b7d",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 125
  },
  "hsl": {
    "h": 224,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37286,
    "c": 0.11592,
    "h": 265.9
  },
  "luminance": 0.04966
}

Semantic roles & 50–950 ramp

primary

#233B7D

secondary

#AF954C

accent

#B748E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233B7D

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

Preview Lab → · Contrast checker → · Palette generator →