#234DB3#234DB3

#234DB3 is a mid, vivid blue. Relative luminance 0.089; OKLCH L 45.5% C 0.169 H 263.9°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#234DB3
RGB	rgb(35, 77, 179)
HSL	hsl(223, 67%, 42%)
HSV	hsv(223, 80%, 70%)
CMYK	cmyk(80.4%, 57%, 0%, 29.8%)
CIE-LAB	lab(35.83, 23.77, -58.23)
CIE-LCH	lch(35.83, 62.90, 292.21°)
OKLab	oklab(45.54% -0.0179 -0.1682)
OKLCH	oklch(45.54% 0.169 263.9)
XYZ	xyz(11.4808, 8.9184, 43.7554)
Luminance	0.0892 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234DB3 #B38923

analogous

#2395B3 #234DB3 #4123B3

triadic

#234DB3 #B3234D #4DB323

tetradic

#234DB3 #B32395 #B38923 #23B341

square

#234DB3 #B32395 #B38923 #23B341

split-complementary

#234DB3 #B34123 #95B323

monochromatic

#0F214D #193780 #234DB3 #3B69D9 #6E90E3

Accessibility & contrast

On white

7.54

#234DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#234DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234DB3

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234DB3	#FFFFFF	#000000	##FFFFFF
##234DB3	1.00	7.54	2.78	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB6

Deuteranopia (green-blind)

#004EB1

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #234db3;
/* rgb */ color: rgb(35, 77, 179);
/* oklch */ color: oklch(45.5% 0.169 263.9);

Tailwind

colors: {
  custom: {
    50: '#767ecb',
    500: '#234db3',
    950: '#000000',
  },
}

SCSS

$custom: #234db3;
$custom-light: #767ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#234db3",
  "rgb": {
    "r": 35,
    "g": 77,
    "b": 179
  },
  "hsl": {
    "h": 222.5,
    "s": 67.29,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45536,
    "c": 0.16912,
    "h": 263.9
  },
  "luminance": 0.0892
}

Semantic roles & 50–950 ramp

primary

#234DB3

secondary

#C9AD69

accent

#B83EEA

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #234DB3

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

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