#233BA5#233BA5

#233BA5 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.8% C 0.172 H 267.7°. Best body text is #FFFFFF at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#233BA5
RGB	rgb(35, 59, 165)
HSL	hsl(229, 65%, 39%)
HSV	hsv(229, 79%, 65%)
CMYK	cmyk(78.8%, 64.2%, 0%, 35.3%)
CIE-LAB	lab(29.91, 30.38, -59.53)
CIE-LCH	lch(29.91, 66.84, 297.04°)
OKLab	oklab(40.76% -0.0068 -0.1722)
OKLCH	oklch(40.76% 0.172 267.7)
XYZ	xyz(9.0463, 6.2008, 36.3101)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233BA5 #A58D23

analogous

#237CA5 #233BA5 #4C23A5

triadic

#233BA5 #A5233B #3BA523

tetradic

#233BA5 #A5237C #A58D23 #23A54C

square

#233BA5 #A5237C #A58D23 #23A54C

split-complementary

#233BA5 #A54C23 #7CA523

monochromatic

#0E1740 #182973 #233BA5 #3250D3 #647BDE

Accessibility & contrast

On white

9.37

#233BA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#233BA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233BA5

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233BA5	#FFFFFF	#000000	##FFFFFF
##233BA5	1.00	9.37	2.24	9.37
#FFFFFF	9.37	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA8

Deuteranopia (green-blind)

#0040A3

Tritanopia (blue-blind)

#00576A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #233ba5;
/* rgb */ color: rgb(35, 59, 165);
/* oklch */ color: oklch(40.8% 0.172 267.7);

Tailwind

colors: {
  custom: {
    50: '#7470c1',
    500: '#233ba5',
    950: '#000000',
  },
}

SCSS

$custom: #233ba5;
$custom-light: #7470c1;
$custom-dark: #000000;

JSON

{
  "hex": "#233ba5",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 165
  },
  "hsl": {
    "h": 228.923,
    "s": 65,
    "l": 39.216
  },
  "oklch": {
    "l": 0.40763,
    "c": 0.17236,
    "h": 267.7
  },
  "luminance": 0.06202
}

Semantic roles & 50–950 ramp

primary

#233BA5

secondary

#C4B160

accent

#C940E8

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0712

muted

#7C7A81

Preview Lab

Preview with #233BA5

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

Preview Lab → · Contrast checker → · Palette generator →