#1A297D#1A297D

#1A297D is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.1% C 0.142 H 268.9°. Best body text is #FFFFFF at 12.67:1 contrast (WCAG AA passes).

Color values

HEX	#1A297D
RGB	rgb(26, 41, 125)
HSL	hsl(231, 66%, 30%)
HSV	hsv(231, 79%, 49%)
CMYK	cmyk(79.2%, 67.2%, 0%, 51%)
CIE-LAB	lab(21.15, 26.19, -49.20)
CIE-LCH	lch(21.15, 55.74, 298.03°)
OKLab	oklab(33.06% -0.0026 -0.1423)
OKLCH	oklch(33.06% 0.142 268.9)
XYZ	xyz(4.9193, 3.2856, 19.7730)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A297D #7D6E1A

analogous

#1A5B7D #1A297D #3D1A7D

triadic

#1A297D #7D1A29 #297D1A

tetradic

#1A297D #7D1A5B #7D6E1A #1A7D3D

square

#1A297D #7D1A5B #7D6E1A #1A7D3D

split-complementary

#1A297D #7D3D1A #5B7D1A

monochromatic

#050819 #0F184A #1A297D #253AB0 #3B53D6

Accessibility & contrast

On white

12.67

#1A297D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#1A297D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A297D

12.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A297D	#FFFFFF	#000000	##FFFFFF
##1A297D	1.00	12.67	1.66	12.67
#FFFFFF	12.67	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003880

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#003F4F

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1a297d;
/* rgb */ color: rgb(26, 41, 125);
/* oklch */ color: oklch(33.1% 0.142 268.9);

Tailwind

colors: {
  custom: {
    50: '#6862a3',
    500: '#1a297d',
    950: '#000000',
  },
}

SCSS

$custom: #1a297d;
$custom-light: #6862a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1a297d",
  "rgb": {
    "r": 26,
    "g": 41,
    "b": 125
  },
  "hsl": {
    "h": 230.909,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.33064,
    "c": 0.14235,
    "h": 268.9
  },
  "luminance": 0.03286
}

Semantic roles & 50–950 ramp

primary

#1A297D

secondary

#B1A042

accent

#CF3FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1A297D

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

Preview Lab → · Contrast checker → · Palette generator →