#211B4E#211B4E

#211B4E is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.3% C 0.090 H 283.6°. Best body text is #FFFFFF at 15.77:1 contrast (WCAG AA passes).

Color values

HEX	#211B4E
RGB	rgb(33, 27, 78)
HSL	hsl(247, 49%, 21%)
HSV	hsv(247, 65%, 31%)
CMYK	cmyk(57.7%, 65.4%, 0%, 69.4%)
CIE-LAB	lab(13.57, 19.09, -30.63)
CIE-LCH	lch(13.57, 36.09, 301.93°)
OKLab	oklab(26.28% 0.0213 -0.0877)
OKLCH	oklch(26.28% 0.09 283.6)
XYZ	xyz(2.3939, 1.6571, 7.4000)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 7.05

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#211B4E #484E1B

analogous

#1B2E4E #211B4E #3A1B4E

triadic

#211B4E #4E211B #1B4E21

tetradic

#211B4E #4E1B2E #484E1B #1B4E3A

square

#211B4E #4E1B2E #484E1B #1B4E3A

split-complementary

#211B4E #4E3A1B #2E4E1B

monochromatic

#0A0817 #0E0B21 #211B4E #342B7B #473AA9

Accessibility & contrast

On white

15.77

#211B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#211B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #211B4E

15.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##211B4E	#FFFFFF	#000000	##FFFFFF
##211B4E	1.00	15.77	1.33	15.77
#FFFFFF	15.77	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#00214D

Tritanopia (blue-blind)

#0F2731

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #211b4e;
/* rgb */ color: rgb(33, 27, 78);
/* oklch */ color: oklch(26.3% 0.090 283.6);

Tailwind

colors: {
  custom: {
    50: '#615780',
    500: '#211b4e',
    950: '#000000',
  },
}

SCSS

$custom: #211b4e;
$custom-light: #615780;
$custom-dark: #000000;

JSON

{
  "hex": "#211b4e",
  "rgb": {
    "r": 33,
    "g": 27,
    "b": 78
  },
  "hsl": {
    "h": 247.059,
    "s": 48.571,
    "l": 20.588
  },
  "oklch": {
    "l": 0.26285,
    "c": 0.09028,
    "h": 283.6
  },
  "luminance": 0.01657
}

Semantic roles & 50–950 ramp

primary

#211B4E

secondary

#7C8441

accent

#D850C8

background

#F5F5F7

surface

#EAE9EE

border

#C6C5C9

text

#05030A

muted

#79787C

Preview Lab

Preview with #211B4E

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

Preview Lab → · Contrast checker → · Palette generator →