#233B6F#233B6F

#233B6F is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.2% C 0.095 H 263.7°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#233B6F
RGB	rgb(35, 59, 111)
HSL	hsl(221, 52%, 29%)
HSV	hsv(221, 68%, 44%)
CMYK	cmyk(68.5%, 46.8%, 0%, 56.5%)
CIE-LAB	lab(25.66, 9.33, -32.96)
CIE-LCH	lch(25.66, 34.25, 285.80°)
OKLab	oklab(36.23% -0.0104 -0.0941)
OKLCH	oklch(36.23% 0.095 263.7)
XYZ	xyz(5.1253, 4.6325, 15.6599)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6F #6F5723

analogous

#23616F #233B6F #31236F

triadic

#233B6F #6F233B #3B6F23

tetradic

#233B6F #6F2361 #6F5723 #236F31

square

#233B6F #6F2361 #6F5723 #236F31

split-complementary

#233B6F #6F3123 #616F23

monochromatic

#070C17 #142240 #233B6F #32549E #476FC5

Accessibility & contrast

On white

10.90

#233B6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233B6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6F

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6F	#FFFFFF	#000000	##FFFFFF
##233B6F	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224171

Deuteranopia (green-blind)

#153A6E

Tritanopia (blue-blind)

#00474F

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233b6f;
/* rgb */ color: rgb(35, 59, 111);
/* oklch */ color: oklch(36.2% 0.095 263.7);

Tailwind

colors: {
  custom: {
    50: '#677099',
    500: '#233b6f',
    950: '#000000',
  },
}

SCSS

$custom: #233b6f;
$custom-light: #677099;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6f",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 111
  },
  "hsl": {
    "h": 221.053,
    "s": 52.055,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36228,
    "c": 0.09472,
    "h": 263.7
  },
  "luminance": 0.04633
}

Semantic roles & 50–950 ramp

primary

#233B6F

secondary

#A2874C

accent

#AE4CDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #233B6F

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

Preview Lab → · Contrast checker → · Palette generator →