#233D7C#233D7C

#233D7C is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.7% C 0.112 H 264.7°. Best body text is #FFFFFF at 10.34:1 contrast (WCAG AA passes).

Color values

HEX	#233D7C
RGB	rgb(35, 61, 124)
HSL	hsl(222, 56%, 31%)
HSV	hsv(222, 72%, 49%)
CMYK	cmyk(71.8%, 50.8%, 0%, 51.4%)
CIE-LAB	lab(27.16, 13.05, -38.79)
CIE-LCH	lch(27.16, 40.93, 288.60°)
OKLab	oklab(37.66% -0.0103 -0.1113)
OKLCH	oklch(37.66% 0.112 264.7)
XYZ	xyz(5.9987, 5.1494, 19.7427)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D7C #7C6223

analogous

#23697C #233D7C #35237C

triadic

#233D7C #7C233D #3D7C23

tetradic

#233D7C #7C2369 #7C6223 #237C35

square

#233D7C #7C2369 #7C6223 #237C35

split-complementary

#233D7C #7C3523 #697C23

monochromatic

#080E1D #16264C #233D7C #3054AC #4D72CD

Accessibility & contrast

On white

10.34

#233D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#233D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D7C

10.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D7C	#FFFFFF	#000000	##FFFFFF
##233D7C	1.00	10.34	2.03	10.34
#FFFFFF	10.34	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A447E

Deuteranopia (green-blind)

#013C7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #233d7c;
/* rgb */ color: rgb(35, 61, 124);
/* oklch */ color: oklch(37.7% 0.112 264.7);

Tailwind

colors: {
  custom: {
    50: '#6a72a2',
    500: '#233d7c',
    950: '#000000',
  },
}

SCSS

$custom: #233d7c;
$custom-light: #6a72a2;
$custom-dark: #000000;

JSON

{
  "hex": "#233d7c",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 222.472,
    "s": 55.975,
    "l": 31.176
  },
  "oklch": {
    "l": 0.3766,
    "c": 0.11175,
    "h": 264.7
  },
  "luminance": 0.0515
}

Semantic roles & 50–950 ramp

primary

#233D7C

secondary

#AF924C

accent

#B349DF

background

#F6F6FA

surface

#ECECF3

border

#C7C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #233D7C

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

Preview Lab → · Contrast checker → · Palette generator →