#1B247E#1B247E

#1B247E is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.3% C 0.150 H 270.5°. Best body text is #FFFFFF at 13.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B247E
RGB	rgb(27, 36, 126)
HSL	hsl(235, 65%, 30%)
HSV	hsv(235, 79%, 49%)
CMYK	cmyk(78.6%, 71.4%, 0%, 50.6%)
CIE-LAB	lab(20.05, 30.05, -51.65)
CIE-LCH	lch(20.05, 59.76, 300.19°)
OKLab	oklab(32.3% 0.0013 -0.1495)
OKLCH	oklch(32.3% 0.15 270.5)
XYZ	xyz(4.8475, 3.0006, 20.0583)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B247E #7E751B

analogous

#1B567E #1B247E #431B7E

triadic

#1B247E #7E1B24 #247E1B

tetradic

#1B247E #7E1B56 #7E751B #1B7E43

square

#1B247E #7E1B56 #7E751B #1B7E43

split-complementary

#1B247E #7E431B #567E1B

monochromatic

#050719 #10164C #1B247E #2632B0 #3E4CD6

Accessibility & contrast

On white

13.12

#1B247E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B247E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B247E

13.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B247E	#FFFFFF	#000000	##FFFFFF
##1B247E	1.00	13.12	1.60	13.12
#FFFFFF	13.12	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003581

Deuteranopia (green-blind)

#002C7C

Tritanopia (blue-blind)

#003D4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b247e;
/* rgb */ color: rgb(27, 36, 126);
/* oklch */ color: oklch(32.3% 0.150 270.5);

Tailwind

colors: {
  custom: {
    50: '#695fa4',
    500: '#1b247e',
    950: '#000000',
  },
}

SCSS

$custom: #1b247e;
$custom-light: #695fa4;
$custom-dark: #000000;

JSON

{
  "hex": "#1b247e",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 126
  },
  "hsl": {
    "h": 234.545,
    "s": 64.706,
    "l": 30
  },
  "oklch": {
    "l": 0.32303,
    "c": 0.14951,
    "h": 270.5
  },
  "luminance": 0.03001
}

Semantic roles & 50–950 ramp

primary

#1B247E

secondary

#B2A843

accent

#D840E8

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1B247E

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

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