#233B6C#233B6C

#233B6C is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.0% C 0.090 H 263.0°. Best body text is #FFFFFF at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#233B6C
RGB	rgb(35, 59, 108)
HSL	hsl(220, 51%, 28%)
HSV	hsv(220, 68%, 42%)
CMYK	cmyk(67.6%, 45.4%, 0%, 57.6%)
CIE-LAB	lab(25.47, 8.15, -31.35)
CIE-LCH	lch(25.47, 32.39, 284.58°)
OKLab	oklab(36.02% -0.011 -0.0894)
OKLCH	oklch(36.02% 0.09 263)
XYZ	xyz(4.9629, 4.5675, 14.8045)
Luminance	0.0457 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233B6C #6C5423

analogous

#235F6C #233B6C #2F236C

triadic

#233B6C #6C233B #3B6C23

tetradic

#233B6C #6C235F #6C5423 #236C2F

square

#233B6C #6C235F #6C5423 #236C2F

split-complementary

#233B6C #6C2F23 #5F6C23

monochromatic

#070D17 #14223E #233B6C #32549A #466FC3

Accessibility & contrast

On white

10.97

#233B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#233B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233B6C

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233B6C	#FFFFFF	#000000	##FFFFFF
##233B6C	1.00	10.97	1.91	10.97
#FFFFFF	10.97	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	10.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24406E

Deuteranopia (green-blind)

#19396B

Tritanopia (blue-blind)

#00464E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #233b6c;
/* rgb */ color: rgb(35, 59, 108);
/* oklch */ color: oklch(36.0% 0.090 263.0);

Tailwind

colors: {
  custom: {
    50: '#667096',
    500: '#233b6c',
    950: '#000000',
  },
}

SCSS

$custom: #233b6c;
$custom-light: #667096;
$custom-dark: #000000;

JSON

{
  "hex": "#233b6c",
  "rgb": {
    "r": 35,
    "g": 59,
    "b": 108
  },
  "hsl": {
    "h": 220.274,
    "s": 51.049,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36015,
    "c": 0.0901,
    "h": 263
  },
  "luminance": 0.04568
}

Semantic roles & 50–950 ramp

primary

#233B6C

secondary

#9F844B

accent

#AC4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233B6C

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

Preview Lab → · Contrast checker → · Palette generator →