#233DA0#233DA0

#233DA0 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.7% C 0.163 H 267.2°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#233DA0
RGB	rgb(35, 61, 160)
HSL	hsl(228, 64%, 38%)
HSV	hsv(228, 78%, 63%)
CMYK	cmyk(78.1%, 61.9%, 0%, 37.3%)
CIE-LAB	lab(29.99, 27.14, -56.39)
CIE-LCH	lch(29.99, 62.58, 295.71°)
OKLab	oklab(40.68% -0.008 -0.163)
OKLCH	oklch(40.68% 0.163 267.2)
XYZ	xyz(8.7048, 6.2319, 33.9950)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DA0 #A08623

analogous

#237BA0 #233DA0 #4723A0

triadic

#233DA0 #A0233D #3DA023

tetradic

#233DA0 #A0237B #A08623 #23A047

square

#233DA0 #A0237B #A08623 #23A047

split-complementary

#233DA0 #A04723 #7BA023

monochromatic

#0D173C #182A6E #233DA0 #2F51D1 #617BDC

Accessibility & contrast

On white

9.35

#233DA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#233DA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DA0

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DA0	#FFFFFF	#000000	##FFFFFF
##233DA0	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00419E

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #233da0;
/* rgb */ color: rgb(35, 61, 160);
/* oklch */ color: oklch(40.7% 0.163 267.2);

Tailwind

colors: {
  custom: {
    50: '#7272bd',
    500: '#233da0',
    950: '#000000',
  },
}

SCSS

$custom: #233da0;
$custom-light: #7272bd;
$custom-dark: #000000;

JSON

{
  "hex": "#233da0",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 160
  },
  "hsl": {
    "h": 227.52,
    "s": 64.103,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40684,
    "c": 0.16318,
    "h": 267.2
  },
  "luminance": 0.06233
}

Semantic roles & 50–950 ramp

primary

#233DA0

secondary

#C1AD5D

accent

#C441E7

background

#F7F6FB

surface

#EEECF7

border

#C9C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #233DA0

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

Preview Lab → · Contrast checker → · Palette generator →