#233C6C#233C6C

#233C6C is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.3% C 0.089 H 262.2°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#233C6C
RGB	rgb(35, 60, 108)
HSL	hsl(219, 51%, 28%)
HSV	hsv(219, 68%, 42%)
CMYK	cmyk(67.6%, 44.4%, 0%, 57.6%)
CIE-LAB	lab(25.78, 7.46, -30.85)
CIE-LCH	lch(25.78, 31.74, 283.59°)
OKLab	oklab(36.25% -0.0121 -0.088)
OKLCH	oklch(36.25% 0.089 262.2)
XYZ	xyz(5.0148, 4.6713, 14.8218)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233C6C #6C5323

analogous

#23606C #233C6C #2E236C

triadic

#233C6C #6C233C #3C6C23

tetradic

#233C6C #6C2360 #6C5323 #236C2E

square

#233C6C #6C2360 #6C5323 #236C2E

split-complementary

#233C6C #6C2E23 #606C23

monochromatic

#070D17 #14223E #233C6C #32569A #4671C3

Accessibility & contrast

On white

10.86

#233C6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233C6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233C6C

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233C6C	#FFFFFF	#000000	##FFFFFF
##233C6C	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#26416E

Deuteranopia (green-blind)

#1B3A6B

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233c6c;
/* rgb */ color: rgb(35, 60, 108);
/* oklch */ color: oklch(36.3% 0.089 262.2);

Tailwind

colors: {
  custom: {
    50: '#667196',
    500: '#233c6c',
    950: '#000000',
  },
}

SCSS

$custom: #233c6c;
$custom-light: #667196;
$custom-dark: #000000;

JSON

{
  "hex": "#233c6c",
  "rgb": {
    "r": 35,
    "g": 60,
    "b": 108
  },
  "hsl": {
    "h": 219.452,
    "s": 51.049,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36255,
    "c": 0.08879,
    "h": 262.2
  },
  "luminance": 0.04672
}

Semantic roles & 50–950 ramp

primary

#233C6C

secondary

#9F834B

accent

#AA4DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233C6C

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

Preview Lab → · Contrast checker → · Palette generator →