#233D66#233D66

#233D66 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.1% C 0.078 H 259.2°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#233D66
RGB	rgb(35, 61, 102)
HSL	hsl(217, 49%, 27%)
HSV	hsv(217, 66%, 40%)
CMYK	cmyk(65.7%, 40.2%, 0%, 60%)
CIE-LAB	lab(25.72, 4.44, -27.08)
CIE-LCH	lch(25.72, 27.45, 279.32°)
OKLab	oklab(36.09% -0.0147 -0.0769)
OKLCH	oklch(36.09% 0.078 259.2)
XYZ	xyz(4.7593, 4.6537, 13.2152)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#233D66 #664C23

analogous

#235F66 #233D66 #2A2366

triadic

#233D66 #66233D #3D6623

tetradic

#233D66 #66235F #664C23 #23662A

square

#233D66 #66235F #664C23 #23662A

split-complementary

#233D66 #662A23 #5F6623

monochromatic

#080E17 #132238 #233D66 #335894 #4474BF

Accessibility & contrast

On white

10.88

#233D66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#233D66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #233D66

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##233D66	#FFFFFF	#000000	##FFFFFF
##233D66	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B4068

Deuteranopia (green-blind)

#223A65

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #233d66;
/* rgb */ color: rgb(35, 61, 102);
/* oklch */ color: oklch(36.1% 0.078 259.2);

Tailwind

colors: {
  custom: {
    50: '#657292',
    500: '#233d66',
    950: '#000000',
  },
}

SCSS

$custom: #233d66;
$custom-light: #657292;
$custom-dark: #000000;

JSON

{
  "hex": "#233d66",
  "rgb": {
    "r": 35,
    "g": 61,
    "b": 102
  },
  "hsl": {
    "h": 216.716,
    "s": 48.905,
    "l": 26.863
  },
  "oklch": {
    "l": 0.36094,
    "c": 0.07829,
    "h": 259.2
  },
  "luminance": 0.04654
}

Semantic roles & 50–950 ramp

primary

#233D66

secondary

#9A7B4B

accent

#A34FD8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #233D66

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

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