#234CB3#234CB3

#234CB3 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.3% C 0.170 H 264.2°. Best body text is #FFFFFF at 7.62:1 contrast (WCAG AA passes).

Color values

HEX	#234CB3
RGB	rgb(35, 76, 179)
HSL	hsl(223, 67%, 42%)
HSV	hsv(223, 80%, 70%)
CMYK	cmyk(80.4%, 57.5%, 0%, 29.8%)
CIE-LAB	lab(35.56, 24.44, -58.67)
CIE-LCH	lch(35.56, 63.56, 292.61°)
OKLab	oklab(45.33% -0.0172 -0.1695)
OKLCH	oklch(45.33% 0.17 264.2)
XYZ	xyz(11.4114, 8.7795, 43.7323)
Luminance	0.0878 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#234CB3 #B38A23

analogous

#2394B3 #234CB3 #4223B3

triadic

#234CB3 #B3234C #4CB323

tetradic

#234CB3 #B32394 #B38A23 #23B342

square

#234CB3 #B32394 #B38A23 #23B342

split-complementary

#234CB3 #B34223 #94B323

monochromatic

#0F214D #193680 #234CB3 #3B68D9 #6E8FE3

Accessibility & contrast

On white

7.62

#234CB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#234CB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #234CB3

7.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##234CB3	#FFFFFF	#000000	##FFFFFF
##234CB3	1.00	7.62	2.76	7.62
#FFFFFF	7.62	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BB7

Deuteranopia (green-blind)

#004DB1

Tritanopia (blue-blind)

#006678

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #234cb3;
/* rgb */ color: rgb(35, 76, 179);
/* oklch */ color: oklch(45.3% 0.170 264.2);

Tailwind

colors: {
  custom: {
    50: '#767dcb',
    500: '#234cb3',
    950: '#000000',
  },
}

SCSS

$custom: #234cb3;
$custom-light: #767dcb;
$custom-dark: #000000;

JSON

{
  "hex": "#234cb3",
  "rgb": {
    "r": 35,
    "g": 76,
    "b": 179
  },
  "hsl": {
    "h": 222.917,
    "s": 67.29,
    "l": 41.961
  },
  "oklch": {
    "l": 0.45332,
    "c": 0.17035,
    "h": 264.2
  },
  "luminance": 0.08781
}

Semantic roles & 50–950 ramp

primary

#234CB3

secondary

#C9AE69

accent

#B93EEA

background

#F7F7FC

surface

#EEEEF9

border

#C9C9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #234CB3

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

Preview Lab → · Contrast checker → · Palette generator →