#233DAF#233DAF

#233DAF is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.183 H 267.4°. Best body text is #FFFFFF at 8.91:1 contrast (WCAG AA passes).

Color values

HEX	#233DAF
RGB	rgb(35, 61, 175)
HSL	hsl(229, 67%, 41%)
HSV	hsv(229, 80%, 69%)
CMYK	cmyk(80%, 65.1%, 0%, 31.4%)
CIE-LAB	lab(31.32, 32.83, -63.22)
CIE-LCH	lch(31.32, 71.24, 297.45°)
OKLab	oklab(42.08% -0.0083 -0.183)
OKLCH	oklch(42.08% 0.183 267.4)
XYZ	xyz(10.0970, 6.7888, 41.3273)
Luminance	0.0679 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233DAF #AF9523

analogous

#2383AF #233DAF #4F23AF

triadic

#233DAF #AF233D #3DAF23

tetradic

#233DAF #AF2383 #AF9523 #23AF4F

square

#233DAF #AF2383 #AF9523 #23AF4F

split-complementary

#233DAF #AF4F23 #83AF23

monochromatic

#0F1949 #192B7C #233DAF #3856D7 #6B81E1

Accessibility & contrast

On white

8.91

#233DAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#233DAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233DAF

8.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233DAF	#FFFFFF	#000000	##FFFFFF
##233DAF	1.00	8.91	2.36	8.91
#FFFFFF	8.91	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B3

Deuteranopia (green-blind)

#0043AD

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #233daf;
/* rgb */ color: rgb(35, 61, 175);
/* oklch */ color: oklch(42.1% 0.183 267.4);

Tailwind

colors: {
  custom: {
    50: '#7672c8',
    500: '#233daf',
    950: '#000000',
  },
}

SCSS

$custom: #233daf;
$custom-light: #7672c8;
$custom-dark: #000000;

JSON

{
  "hex": "#233daf",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 175
  },
  "hsl": {
    "h": 228.857,
    "s": 66.667,
    "l": 41.176
  },
  "oklch": {
    "l": 0.42077,
    "c": 0.18319,
    "h": 267.4
  },
  "luminance": 0.0679
}

Semantic roles & 50–950 ramp

primary

#233DAF

secondary

#C7B566

accent

#CA3EEA

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #233DAF

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

Preview Lab → · Contrast checker → · Palette generator →