#1A2579#1A2579

#1A2579 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.9% C 0.142 H 270.1°. Best body text is #FFFFFF at 13.25:1 contrast (WCAG AA passes).

Color values

HEX	#1A2579
RGB	rgb(26, 37, 121)
HSL	hsl(233, 65%, 29%)
HSV	hsv(233, 79%, 47%)
CMYK	cmyk(78.5%, 69.4%, 0%, 52.5%)
CIE-LAB	lab(19.73, 27.37, -48.99)
CIE-LCH	lch(19.73, 56.11, 299.19°)
OKLab	oklab(31.91% 0.0001 -0.1417)
OKLCH	oklch(31.91% 0.142 270.1)
XYZ	xyz(4.5376, 2.9227, 18.4105)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2579 #796E1A

analogous

#1A5579 #1A2579 #3F1A79

triadic

#1A2579 #791A25 #25791A

tetradic

#1A2579 #791A55 #796E1A #1A793F

square

#1A2579 #791A55 #796E1A #1A793F

split-complementary

#1A2579 #793F1A #55791A

monochromatic

#050819 #0F1647 #1A2579 #2534AB #394BD4

Accessibility & contrast

On white

13.25

#1A2579 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1A2579 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2579

13.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2579	#FFFFFF	#000000	##FFFFFF
##1A2579	1.00	13.25	1.58	13.25
#FFFFFF	13.25	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347C

Deuteranopia (green-blind)

#002B77

Tritanopia (blue-blind)

#003C4B

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1a2579;
/* rgb */ color: rgb(26, 37, 121);
/* oklch */ color: oklch(31.9% 0.142 270.1);

Tailwind

colors: {
  custom: {
    50: '#675fa1',
    500: '#1a2579',
    950: '#000000',
  },
}

SCSS

$custom: #1a2579;
$custom-light: #675fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2579",
  "rgb": {
    "r": 26,
    "g": 37,
    "b": 121
  },
  "hsl": {
    "h": 233.053,
    "s": 64.626,
    "l": 28.824
  },
  "oklch": {
    "l": 0.31905,
    "c": 0.14174,
    "h": 270.1
  },
  "luminance": 0.02923
}

Semantic roles & 50–950 ramp

primary

#1A2579

secondary

#ADA141

accent

#D440E8

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1A2579

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

Preview Lab → · Contrast checker → · Palette generator →