#1A3A87#1A3A87

#1A3A87 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.5% C 0.135 H 264.0°. Best body text is #FFFFFF at 10.51:1 contrast (WCAG AA passes).

Color values

HEX	#1A3A87
RGB	rgb(26, 58, 135)
HSL	hsl(222, 68%, 32%)
HSV	hsv(222, 81%, 53%)
CMYK	cmyk(80.7%, 57%, 0%, 47.1%)
CIE-LAB	lab(26.72, 18.33, -46.40)
CIE-LCH	lch(26.72, 49.89, 291.56°)
OKLab	oklab(37.48% -0.0142 -0.1339)
OKLCH	oklch(37.48% 0.135 264)
XYZ	xyz(6.3107, 4.9943, 23.5484)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3A87 #87671A

analogous

#1A7187 #1A3A87 #301A87

triadic

#1A3A87 #871A3A #3A871A

tetradic

#1A3A87 #871A71 #87671A #1A8730

square

#1A3A87 #871A71 #87671A #1A8730

split-complementary

#1A3A87 #87301A #71871A

monochromatic

#060E20 #102454 #1A3A87 #2450BA #416EDA

Accessibility & contrast

On white

10.51

#1A3A87 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#1A3A87 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3A87

10.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3A87	#FFFFFF	#000000	##FFFFFF
##1A3A87	1.00	10.51	2.00	10.51
#FFFFFF	10.51	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#004D5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3a87;
/* rgb */ color: rgb(26, 58, 135);
/* oklch */ color: oklch(37.5% 0.135 264.0);

Tailwind

colors: {
  custom: {
    50: '#696fab',
    500: '#1a3a87',
    950: '#000000',
  },
}

SCSS

$custom: #1a3a87;
$custom-light: #696fab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3a87",
  "rgb": {
    "r": 26,
    "g": 58,
    "b": 135
  },
  "hsl": {
    "h": 222.385,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37483,
    "c": 0.13462,
    "h": 264
  },
  "luminance": 0.04995
}

Semantic roles & 50–950 ramp

primary

#1A3A87

secondary

#BA9742

accent

#B83DEB

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3A87

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

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