#1D257A#1D257A

#1D257A is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.2% C 0.142 H 271.3°. Best body text is #FFFFFF at 13.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D257A
RGB	rgb(29, 37, 122)
HSL	hsl(235, 62%, 30%)
HSV	hsv(235, 76%, 48%)
CMYK	cmyk(76.2%, 69.7%, 0%, 52.2%)
CIE-LAB	lab(20.00, 28.09, -49.18)
CIE-LCH	lch(20.00, 56.64, 299.73°)
OKLab	oklab(32.18% 0.0034 -0.1422)
OKLCH	oklch(32.18% 0.142 271.3)
XYZ	xyz(4.6799, 2.9890, 18.7389)
Luminance	0.0299 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D257A #7A721D

analogous

#1D537A #1D257A #441D7A

triadic

#1D257A #7A1D25 #257A1D

tetradic

#1D257A #7A1D53 #7A721D #1D7A44

square

#1D257A #7A1D53 #7A721D #1D7A44

split-complementary

#1D257A #7A441D #537A1D

monochromatic

#060719 #111649 #1D257A #2934AB #404CD2

Accessibility & contrast

On white

13.14

#1D257A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1D257A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D257A

13.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D257A	#FFFFFF	#000000	##FFFFFF
##1D257A	1.00	13.14	1.60	13.14
#FFFFFF	13.14	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00357D

Deuteranopia (green-blind)

#002C78

Tritanopia (blue-blind)

#003C4C

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d257a;
/* rgb */ color: rgb(29, 37, 122);
/* oklch */ color: oklch(32.2% 0.142 271.3);

Tailwind

colors: {
  custom: {
    50: '#695fa1',
    500: '#1d257a',
    950: '#000000',
  },
}

SCSS

$custom: #1d257a;
$custom-light: #695fa1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d257a",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 122
  },
  "hsl": {
    "h": 234.839,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32176,
    "c": 0.14227,
    "h": 271.3
  },
  "luminance": 0.02989
}

Semantic roles & 50–950 ramp

primary

#1D257A

secondary

#AEA545

accent

#D743E5

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #1D257A

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

Preview Lab → · Contrast checker → · Palette generator →