#1B114E#1B114E

#1B114E is a very dark, moderate blue. Relative luminance 0.012; OKLCH L 23.9% C 0.106 H 282.4°. Best body text is #FFFFFF at 16.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B114E
RGB	rgb(27, 17, 78)
HSL	hsl(250, 64%, 19%)
HSV	hsv(250, 78%, 31%)
CMYK	cmyk(65.4%, 78.2%, 0%, 69.4%)
CIE-LAB	lab(10.44, 24.71, -35.77)
CIE-LCH	lch(10.44, 43.47, 304.63°)
OKLab	oklab(23.86% 0.0226 -0.1031)
OKLCH	oklch(23.86% 0.106 282.4)
XYZ	xyz(2.0272, 1.1838, 7.3279)
Luminance	0.0118 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.08

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B114E #444E11

analogous

#11254E #1B114E #39114E

triadic

#1B114E #4E1B11 #114E1B

tetradic

#1B114E #4E1125 #444E11 #114E39

square

#1B114E #4E1125 #444E11 #114E39

split-complementary

#1B114E #4E3911 #254E11

monochromatic

#090519 #0A061C #1B114E #2C1C80 #3E27B2

Accessibility & contrast

On white

16.98

#1B114E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#1B114E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B114E

16.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B114E	#FFFFFF	#000000	##FFFFFF
##1B114E	1.00	16.98	1.24	16.98
#FFFFFF	16.98	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E50

Deuteranopia (green-blind)

#001A4D

Tritanopia (blue-blind)

#00222E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1b114e;
/* rgb */ color: rgb(27, 17, 78);
/* oklch */ color: oklch(23.9% 0.106 282.4);

Tailwind

colors: {
  custom: {
    50: '#5f5080',
    500: '#1b114e',
    950: '#000000',
  },
}

SCSS

$custom: #1b114e;
$custom-light: #5f5080;
$custom-dark: #000000;

JSON

{
  "hex": "#1b114e",
  "rgb": {
    "r": 27,
    "g": 17,
    "b": 78
  },
  "hsl": {
    "h": 249.836,
    "s": 64.211,
    "l": 18.627
  },
  "oklch": {
    "l": 0.23864,
    "c": 0.10552,
    "h": 282.4
  },
  "luminance": 0.01184
}

Semantic roles & 50–950 ramp

primary

#1B114E

secondary

#7A8733

accent

#E741CC

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1B114E

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

Preview Lab → · Contrast checker → · Palette generator →