#1B207E#1B207E

#1B207E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.6% C 0.154 H 271.3°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B207E
RGB	rgb(27, 32, 126)
HSL	hsl(237, 65%, 30%)
HSV	hsv(237, 79%, 49%)
CMYK	cmyk(78.6%, 74.6%, 0%, 50.6%)
CIE-LAB	lab(19.11, 32.63, -53.20)
CIE-LCH	lch(19.11, 62.41, 301.52°)
OKLab	oklab(31.63% 0.0034 -0.154)
OKLCH	oklch(31.63% 0.154 271.3)
XYZ	xyz(4.7331, 2.7719, 20.0202)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B207E #7E791B

analogous

#1B517E #1B207E #481B7E

triadic

#1B207E #7E1B20 #207E1B

tetradic

#1B207E #7E1B51 #7E791B #1B7E48

square

#1B207E #7E1B51 #7E791B #1B7E48

split-complementary

#1B207E #7E481B #517E1B

monochromatic

#050619 #10134C #1B207E #262DB0 #3E45D6

Accessibility & contrast

On white

13.51

#1B207E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1B207E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B207E

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B207E	#FFFFFF	#000000	##FFFFFF
##1B207E	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003381

Deuteranopia (green-blind)

#002A7C

Tritanopia (blue-blind)

#003B4D

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1b207e;
/* rgb */ color: rgb(27, 32, 126);
/* oklch */ color: oklch(31.6% 0.154 271.3);

Tailwind

colors: {
  custom: {
    50: '#6a5ca4',
    500: '#1b207e',
    950: '#000000',
  },
}

SCSS

$custom: #1b207e;
$custom-light: #6a5ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b207e",
  "rgb": {
    "r": 27,
    "g": 32,
    "b": 126
  },
  "hsl": {
    "h": 236.97,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.31626,
    "c": 0.15405,
    "h": 271.3
  },
  "luminance": 0.02772
}

Semantic roles & 50–950 ramp

primary

#1B207E

secondary

#B2AC43

accent

#DF40E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B207E

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

Preview Lab → · Contrast checker → · Palette generator →