#233B6B#233B6B

#233B6B is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.089 H 262.7°. Best body text is #FFFFFF at 11.00:1 contrast (WCAG AA passes).

Color values

HEX	#233B6B
RGB	rgb(35, 59, 107)
HSL	hsl(220, 51%, 28%)
HSV	hsv(220, 67%, 42%)
CMYK	cmyk(67.3%, 44.9%, 0%, 58%)
CIE-LAB	lab(25.40, 7.76, -30.81)
CIE-LCH	lch(25.40, 31.78, 284.14°)
OKLab	oklab(35.94% -0.0112 -0.0878)
OKLCH	oklch(35.94% 0.089 262.7)
XYZ	xyz(4.9100, 4.5463, 14.5258)
Luminance	0.0455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6B #6B5323

analogous

#235F6B #233B6B #2F236B

triadic

#233B6B #6B233B #3B6B23

tetradic

#233B6B #6B235F #6B5323 #236B2F

square

#233B6B #6B235F #6B5323 #236B2F

split-complementary

#233B6B #6B2F23 #5F6B23

monochromatic

#080D17 #14223D #233B6B #325499 #466FC2

Accessibility & contrast

On white

11.00

#233B6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#233B6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6B

11.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6B	#FFFFFF	#000000	##FFFFFF
##233B6B	1.00	11.00	1.91	11.00
#FFFFFF	11.00	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25406D

Deuteranopia (green-blind)

#1A396A

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233b6b;
/* rgb */ color: rgb(35, 59, 107);
/* oklch */ color: oklch(35.9% 0.089 262.7);

Tailwind

colors: {
  custom: {
    50: '#667096',
    500: '#233b6b',
    950: '#000000',
  },
}

SCSS

$custom: #233b6b;
$custom-light: #667096;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6b",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 107
  },
  "hsl": {
    "h": 220,
    "s": 50.704,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35944,
    "c": 0.08856,
    "h": 262.7
  },
  "luminance": 0.04547
}

Semantic roles & 50–950 ramp

primary

#233B6B

secondary

#9E834B

accent

#AB4EDA

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233B6B

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

Preview Lab → · Contrast checker → · Palette generator →