#233E7A#233E7A

#233E7A is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.7% C 0.107 H 263.8°. Best body text is #FFFFFF at 10.29:1 contrast (WCAG AA passes).

Color values

HEX	#233E7A
RGB	rgb(35, 62, 122)
HSL	hsl(221, 55%, 31%)
HSV	hsv(221, 71%, 48%)
CMYK	cmyk(71.3%, 49.2%, 0%, 52.2%)
CIE-LAB	lab(27.32, 11.57, -37.28)
CIE-LCH	lch(27.32, 39.03, 287.24°)
OKLab	oklab(37.74% -0.0116 -0.1068)
OKLCH	oklch(37.74% 0.107 263.8)
XYZ	xyz(5.9274, 5.2071, 19.1013)
Luminance	0.0521 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233E7A #7A5F23

analogous

#23697A #233E7A #33237A

triadic

#233E7A #7A233E #3E7A23

tetradic

#233E7A #7A2369 #7A5F23 #237A33

square

#233E7A #7A2369 #7A5F23 #237A33

split-complementary

#233E7A #7A3323 #697A23

monochromatic

#080E1B #15264A #233E7A #3156AA #4C73CC

Accessibility & contrast

On white

10.29

#233E7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#233E7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233E7A

10.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233E7A	#FFFFFF	#000000	##FFFFFF
##233E7A	1.00	10.29	2.04	10.29
#FFFFFF	10.29	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F457C

Deuteranopia (green-blind)

#0B3D79

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #233e7a;
/* rgb */ color: rgb(35, 62, 122);
/* oklch */ color: oklch(37.7% 0.107 263.8);

Tailwind

colors: {
  custom: {
    50: '#6972a1',
    500: '#233e7a',
    950: '#000000',
  },
}

SCSS

$custom: #233e7a;
$custom-light: #6972a1;
$custom-dark: #000000;

JSON

{
  "hex": "#233e7a",
  "rgb": {
    "r": 35,
    "g": 62,
    "b": 122
  },
  "hsl": {
    "h": 221.379,
    "s": 55.414,
    "l": 30.784
  },
  "oklch": {
    "l": 0.37738,
    "c": 0.10743,
    "h": 263.8
  },
  "luminance": 0.05208
}

Semantic roles & 50–950 ramp

primary

#233E7A

secondary

#AD8F4C

accent

#B049DF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #233E7A

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

Preview Lab → · Contrast checker → · Palette generator →