#1A297B#1A297B

#1A297B is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.140 H 269.0°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#1A297B
RGB	rgb(26, 41, 123)
HSL	hsl(231, 65%, 29%)
HSV	hsv(231, 79%, 48%)
CMYK	cmyk(78.9%, 66.7%, 0%, 51.8%)
CIE-LAB	lab(20.96, 25.41, -48.24)
CIE-LCH	lch(20.96, 54.53, 297.77°)
OKLab	oklab(32.87% -0.0025 -0.1395)
OKLCH	oklch(32.87% 0.14 269)
XYZ	xyz(4.7929, 3.2350, 19.1069)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A297B #7B6C1A

analogous

#1A5A7B #1A297B #3C1A7B

triadic

#1A297B #7B1A29 #297B1A

tetradic

#1A297B #7B1A5A #7B6C1A #1A7B3C

square

#1A297B #7B1A5A #7B6C1A #1A7B3C

split-complementary

#1A297B #7B3C1A #5A7B1A

monochromatic

#050819 #0F1848 #1A297B #253AAE #3A52D5

Accessibility & contrast

On white

12.75

#1A297B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1A297B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A297B

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A297B	#FFFFFF	#000000	##FFFFFF
##1A297B	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00377E

Deuteranopia (green-blind)

#002E79

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1a297b;
/* rgb */ color: rgb(26, 41, 123);
/* oklch */ color: oklch(32.9% 0.140 269.0);

Tailwind

colors: {
  custom: {
    50: '#6862a2',
    500: '#1a297b',
    950: '#000000',
  },
}

SCSS

$custom: #1a297b;
$custom-light: #6862a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1a297b",
  "rgb": {
    "r": 26,
    "g": 41,
    "b": 123
  },
  "hsl": {
    "h": 230.722,
    "s": 65.101,
    "l": 29.216
  },
  "oklch": {
    "l": 0.32865,
    "c": 0.13956,
    "h": 269
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#1A297B

secondary

#AF9E42

accent

#CE40E8

background

#F6F5FA

surface

#EBEAF4

border

#C6C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1A297B

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

Preview Lab → · Contrast checker → · Palette generator →