#233DA7#233DA7

#233DA7 is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.3% C 0.173 H 267.3°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#233DA7
RGB	rgb(35, 61, 167)
HSL	hsl(228, 65%, 40%)
HSV	hsv(228, 79%, 65%)
CMYK	cmyk(79%, 63.5%, 0%, 34.5%)
CIE-LAB	lab(30.60, 29.82, -59.61)
CIE-LCH	lch(30.60, 66.65, 296.57°)
OKLab	oklab(41.33% -0.008 -0.1724)
OKLCH	oklch(41.33% 0.173 267.3)
XYZ	xyz(9.3345, 6.4838, 37.3113)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DA7 #A78D23

analogous

#237FA7 #233DA7 #4B23A7

triadic

#233DA7 #A7233D #3DA723

tetradic

#233DA7 #A7237F #A78D23 #23A74B

square

#233DA7 #A7237F #A78D23 #23A74B

split-complementary

#233DA7 #A74B23 #7FA723

monochromatic

#0E1842 #182B74 #233DA7 #3353D4 #667DDF

Accessibility & contrast

On white

9.14

#233DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#233DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DA7

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DA7	#FFFFFF	#000000	##FFFFFF
##233DA7	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EAA

Deuteranopia (green-blind)

#0042A5

Tritanopia (blue-blind)

#00596C

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #233da7;
/* rgb */ color: rgb(35, 61, 167);
/* oklch */ color: oklch(41.3% 0.173 267.3);

Tailwind

colors: {
  custom: {
    50: '#7472c2',
    500: '#233da7',
    950: '#000000',
  },
}

SCSS

$custom: #233da7;
$custom-light: #7472c2;
$custom-dark: #000000;

JSON

{
  "hex": "#233da7",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 167
  },
  "hsl": {
    "h": 228.182,
    "s": 65.347,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41326,
    "c": 0.17262,
    "h": 267.3
  },
  "luminance": 0.06485
}

Semantic roles & 50–950 ramp

primary

#233DA7

secondary

#C4B161

accent

#C73FE8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #233DA7

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

Preview Lab → · Contrast checker → · Palette generator →