#233B5F#233B5F

#233B5F is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.1% C 0.070 H 258.3°. Best body text is #FFFFFF at 11.28:1 contrast (WCAG AA passes).

Color values

HEX	#233B5F
RGB	rgb(35, 59, 95)
HSL	hsl(216, 46%, 25%)
HSV	hsv(216, 63%, 37%)
CMYK	cmyk(63.2%, 37.9%, 0%, 62.7%)
CIE-LAB	lab(24.67, 3.14, -24.21)
CIE-LCH	lch(24.67, 24.42, 277.39°)
OKLab	oklab(35.14% -0.0142 -0.0685)
OKLCH	oklch(35.14% 0.07 258.3)
XYZ	xyz(4.3219, 4.3111, 11.4286)
Luminance	0.0431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B5F #5F4723

analogous

#23595F #233B5F #29235F

triadic

#233B5F #5F233B #3B5F23

tetradic

#233B5F #5F2359 #5F4723 #235F29

square

#233B5F #5F2359 #5F4723 #235F29

split-complementary

#233B5F #5F2923 #595F23

monochromatic

#080E16 #131F32 #233B5F #33578C #4473B8

Accessibility & contrast

On white

11.28

#233B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#233B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B5F

11.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B5F	#FFFFFF	#000000	##FFFFFF
##233B5F	1.00	11.28	1.86	11.28
#FFFFFF	11.28	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3E60

Deuteranopia (green-blind)

#24385E

Tritanopia (blue-blind)

#004348

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #233b5f;
/* rgb */ color: rgb(35, 59, 95);
/* oklch */ color: oklch(35.1% 0.070 258.3);

Tailwind

colors: {
  custom: {
    50: '#64708c',
    500: '#233b5f',
    950: '#000000',
  },
}

SCSS

$custom: #233b5f;
$custom-light: #64708c;
$custom-dark: #000000;

JSON

{
  "hex": "#233b5f",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 95
  },
  "hsl": {
    "h": 216,
    "s": 46.154,
    "l": 25.49
  },
  "oklch": {
    "l": 0.35144,
    "c": 0.06999,
    "h": 258.3
  },
  "luminance": 0.04311
}

Semantic roles & 50–950 ramp

primary

#233B5F

secondary

#93764B

accent

#A152D6

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #233B5F

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

Preview Lab → · Contrast checker → · Palette generator →