#1F2A9E#1F2A9E

#1F2A9E is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.9% C 0.184 H 269.6°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#1F2A9E
RGB	rgb(31, 42, 158)
HSL	hsl(235, 67%, 37%)
HSV	hsv(235, 80%, 62%)
CMYK	cmyk(80.4%, 73.4%, 0%, 38%)
CIE-LAB	lab(25.00, 38.34, -63.38)
CIE-LCH	lch(25.00, 74.07, 301.17°)
OKLab	oklab(36.93% -0.0014 -0.1836)
OKLCH	oklch(36.93% 0.184 269.6)
XYZ	xyz(7.5625, 4.4150, 32.7947)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2A9E #9E931F

analogous

#1F6A9E #1F2A9E #541F9E

triadic

#1F2A9E #9E1F2A #2A9E1F

tetradic

#1F2A9E #9E1F6A #9E931F #1F9E54

square

#1F2A9E #9E1F6A #9E931F #1F9E54

split-complementary

#1F2A9E #9E541F #6A9E1F

monochromatic

#0B0F38 #151C6B #1F2A9E #2938D1 #5965DE

Accessibility & contrast

On white

11.15

#1F2A9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1F2A9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2A9E

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2A9E	#FFFFFF	#000000	##FFFFFF
##1F2A9E	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A1

Deuteranopia (green-blind)

#00359C

Tritanopia (blue-blind)

#004B61

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f2a9e;
/* rgb */ color: rgb(31, 42, 158);
/* oklch */ color: oklch(36.9% 0.184 269.6);

Tailwind

colors: {
  custom: {
    50: '#7264bc',
    500: '#1f2a9e',
    950: '#000000',
  },
}

SCSS

$custom: #1f2a9e;
$custom-light: #7264bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2a9e",
  "rgb": {
    "r": 31,
    "g": 42,
    "b": 158
  },
  "hsl": {
    "h": 234.803,
    "s": 67.196,
    "l": 37.059
  },
  "oklch": {
    "l": 0.36931,
    "c": 0.18359,
    "h": 269.6
  },
  "luminance": 0.04416
}

Semantic roles & 50–950 ramp

primary

#1F2A9E

secondary

#C2B956

accent

#DB3EEA

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090512

muted

#7B7A81

Preview Lab

Preview with #1F2A9E

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

Preview Lab → · Contrast checker → · Palette generator →