#233F7D#233F7D

#233F7D is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.2% C 0.111 H 263.7°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#233F7D
RGB	rgb(35, 63, 125)
HSL	hsl(221, 56%, 31%)
HSV	hsv(221, 72%, 49%)
CMYK	cmyk(72%, 49.6%, 0%, 51%)
CIE-LAB	lab(27.82, 12.06, -38.34)
CIE-LCH	lch(27.82, 40.20, 287.46°)
OKLab	oklab(38.19% -0.0121 -0.1099)
OKLCH	oklch(38.19% 0.111 263.7)
XYZ	xyz(6.1710, 5.3924, 20.1137)
Luminance	0.0539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233F7D #7D6123

analogous

#236C7D #233F7D #34237D

triadic

#233F7D #7D233F #3F7D23

tetradic

#233F7D #7D236C #7D6123 #237D34

square

#233F7D #7D236C #7D6123 #237D34

split-complementary

#233F7D #7D3423 #6C7D23

monochromatic

#080F1D #16274D #233F7D #3057AD #4D75CD

Accessibility & contrast

On white

10.10

#233F7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#233F7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233F7D

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233F7D	#FFFFFF	#000000	##FFFFFF
##233F7D	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E467F

Deuteranopia (green-blind)

#073E7C

Tritanopia (blue-blind)

#004E58

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #233f7d;
/* rgb */ color: rgb(35, 63, 125);
/* oklch */ color: oklch(38.2% 0.111 263.7);

Tailwind

colors: {
  custom: {
    50: '#6a73a3',
    500: '#233f7d',
    950: '#000000',
  },
}

SCSS

$custom: #233f7d;
$custom-light: #6a73a3;
$custom-dark: #000000;

JSON

{
  "hex": "#233f7d",
  "rgb": {
    "r": 35,
    "g": 63,
    "b": 125
  },
  "hsl": {
    "h": 221.333,
    "s": 56.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38193,
    "c": 0.11059,
    "h": 263.7
  },
  "luminance": 0.05393
}

Semantic roles & 50–950 ramp

primary

#233F7D

secondary

#AF914C

accent

#B048E0

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #233F7D

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

Preview Lab → · Contrast checker → · Palette generator →