#1A104E#1A104E

#1A104E is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.6% C 0.107 H 281.8°. Best body text is #FFFFFF at 17.10:1 contrast (WCAG AA passes).

Color values

HEX	#1A104E
RGB	rgb(26, 16, 78)
HSL	hsl(250, 66%, 18%)
HSV	hsv(250, 79%, 31%)
CMYK	cmyk(66.7%, 79.5%, 0%, 69.4%)
CIE-LAB	lab(10.11, 25.18, -36.32)
CIE-LCH	lch(10.11, 44.19, 304.74°)
OKLab	oklab(23.61% 0.0218 -0.1047)
OKLCH	oklch(23.61% 0.107 281.8)
XYZ	xyz(1.9860, 1.1401, 7.3217)
Luminance	0.0114 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.02

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A104E #444E10

analogous

#10254E #1A104E #39104E

triadic

#1A104E #4E1A10 #104E1A

tetradic

#1A104E #4E1025 #444E10 #104E39

square

#1A104E #4E1025 #444E10 #104E39

split-complementary

#1A104E #4E3910 #254E10

monochromatic

#080519 #09061B #1A104E #2B1A81 #3C25B4

Accessibility & contrast

On white

17.10

#1A104E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#1A104E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A104E

17.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A104E	#FFFFFF	#000000	##FFFFFF
##1A104E	1.00	17.10	1.23	17.10
#FFFFFF	17.10	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E50

Deuteranopia (green-blind)

#00194D

Tritanopia (blue-blind)

#00212E

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #1a104e;
/* rgb */ color: rgb(26, 16, 78);
/* oklch */ color: oklch(23.6% 0.107 281.8);

Tailwind

colors: {
  custom: {
    50: '#5e4f80',
    500: '#1a104e',
    950: '#000000',
  },
}

SCSS

$custom: #1a104e;
$custom-light: #5e4f80;
$custom-dark: #000000;

JSON

{
  "hex": "#1a104e",
  "rgb": {
    "r": 26,
    "g": 16,
    "b": 78
  },
  "hsl": {
    "h": 249.677,
    "s": 65.957,
    "l": 18.431
  },
  "oklch": {
    "l": 0.23605,
    "c": 0.10694,
    "h": 281.8
  },
  "luminance": 0.0114
}

Semantic roles & 50–950 ramp

primary

#1A104E

secondary

#7A8832

accent

#E93FCD

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1A104E

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

Preview Lab → · Contrast checker → · Palette generator →