#1A3987#1A3987

#1A3987 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.136 H 264.3°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#1A3987
RGB	rgb(26, 57, 135)
HSL	hsl(223, 68%, 32%)
HSV	hsv(223, 81%, 53%)
CMYK	cmyk(80.7%, 57.8%, 0%, 47.1%)
CIE-LAB	lab(26.43, 19.03, -46.86)
CIE-LCH	lch(26.43, 50.58, 292.10°)
OKLab	oklab(37.27% -0.0134 -0.1353)
OKLCH	oklch(37.27% 0.136 264.3)
XYZ	xyz(6.2607, 4.8944, 23.5317)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3987 #87681A

analogous

#1A7087 #1A3987 #321A87

triadic

#1A3987 #871A39 #39871A

tetradic

#1A3987 #871A70 #87681A #1A8732

square

#1A3987 #871A70 #87681A #1A8732

split-complementary

#1A3987 #87321A #70871A

monochromatic

#060E20 #102354 #1A3987 #244FBA #416DDA

Accessibility & contrast

On white

10.61

#1A3987 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#1A3987 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3987

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3987	#FFFFFF	#000000	##FFFFFF
##1A3987	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#004C5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1a3987;
/* rgb */ color: rgb(26, 57, 135);
/* oklch */ color: oklch(37.3% 0.136 264.3);

Tailwind

colors: {
  custom: {
    50: '#696eab',
    500: '#1a3987',
    950: '#000000',
  },
}

SCSS

$custom: #1a3987;
$custom-light: #696eab;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3987",
  "rgb": {
    "r": 26,
    "g": 57,
    "b": 135
  },
  "hsl": {
    "h": 222.936,
    "s": 67.702,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37267,
    "c": 0.13593,
    "h": 264.3
  },
  "luminance": 0.04895
}

Semantic roles & 50–950 ramp

primary

#1A3987

secondary

#BA9842

accent

#B93DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #1A3987

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

Preview Lab → · Contrast checker → · Palette generator →