#21338F#21338F

#21338F is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.153 H 268.9°. Best body text is #FFFFFF at 10.85:1 contrast (WCAG AA passes).

Color values

HEX	#21338F
RGB	rgb(33, 51, 143)
HSL	hsl(230, 63%, 35%)
HSV	hsv(230, 77%, 56%)
CMYK	cmyk(76.9%, 64.3%, 0%, 43.9%)
CIE-LAB	lab(25.78, 27.13, -52.87)
CIE-LCH	lch(25.78, 59.43, 297.17°)
OKLab	oklab(37.08% -0.003 -0.1528)
OKLCH	oklch(37.08% 0.153 268.9)
XYZ	xyz(6.7672, 4.6734, 26.5267)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#21338F #8F7D21

analogous

#216A8F #21338F #46218F

triadic

#21338F #8F2133 #338F21

tetradic

#21338F #8F216A #8F7D21 #218F46

square

#21338F #8F216A #8F7D21 #218F46

split-complementary

#21338F #8F4621 #6A8F21

monochromatic

#0A102C #16215D #21338F #2C45C1 #5369D7

Accessibility & contrast

On white

10.85

#21338F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#21338F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #21338F

10.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##21338F	#FFFFFF	#000000	##FFFFFF
##21338F	1.00	10.85	1.93	10.85
#FFFFFF	10.85	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00388D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #21338f;
/* rgb */ color: rgb(33, 51, 143);
/* oklch */ color: oklch(37.1% 0.153 268.9);

Tailwind

colors: {
  custom: {
    50: '#6e6ab1',
    500: '#21338f',
    950: '#000000',
  },
}

SCSS

$custom: #21338f;
$custom-light: #6e6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#21338f",
  "rgb": {
    "r": 33,
    "g": 51,
    "b": 143
  },
  "hsl": {
    "h": 230.182,
    "s": 62.5,
    "l": 34.51
  },
  "oklch": {
    "l": 0.37081,
    "c": 0.15287,
    "h": 268.9
  },
  "luminance": 0.04674
}

Semantic roles & 50–950 ramp

primary

#21338F

secondary

#BBAA51

accent

#CB42E6

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #21338F

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

Preview Lab → · Contrast checker → · Palette generator →