#233F6E#233F6E

#233F6E is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.1% C 0.088 H 260.2°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#233F6E
RGB	rgb(35, 63, 110)
HSL	hsl(218, 52%, 28%)
HSV	hsv(218, 68%, 43%)
CMYK	cmyk(68.2%, 42.7%, 0%, 56.9%)
CIE-LAB	lab(26.84, 6.17, -30.44)
CIE-LCH	lch(26.84, 31.05, 281.46°)
OKLab	oklab(37.12% -0.015 -0.0867)
OKLCH	oklch(37.12% 0.088 260.2)
XYZ	xyz(5.2841, 5.0376, 15.4427)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F6E #6E5223

analogous

#23646E #233F6E #2C236E

triadic

#233F6E #6E233F #3F6E23

tetradic

#233F6E #6E2364 #6E5223 #236E2C

square

#233F6E #6E2364 #6E5223 #236E2C

split-complementary

#233F6E #6E2C23 #646E23

monochromatic

#070D17 #142440 #233F6E #325A9C #4776C4

Accessibility & contrast

On white

10.46

#233F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#233F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F6E

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F6E	#FFFFFF	#000000	##FFFFFF
##233F6E	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4370

Deuteranopia (green-blind)

#1F3C6D

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #233f6e;
/* rgb */ color: rgb(35, 63, 110);
/* oklch */ color: oklch(37.1% 0.088 260.2);

Tailwind

colors: {
  custom: {
    50: '#677398',
    500: '#233f6e',
    950: '#000000',
  },
}

SCSS

$custom: #233f6e;
$custom-light: #677398;
$custom-dark: #000000;

JSON

{
  "hex": "#233f6e",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 110
  },
  "hsl": {
    "h": 217.6,
    "s": 51.724,
    "l": 28.431
  },
  "oklch": {
    "l": 0.37119,
    "c": 0.08798,
    "h": 260.2
  },
  "luminance": 0.05038
}

Semantic roles & 50–950 ramp

primary

#233F6E

secondary

#A1814C

accent

#A64DDB

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080D

muted

#7A7B7E

Preview Lab

Preview with #233F6E

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

Preview Lab → · Contrast checker → · Palette generator →