#1F25A8#1F25A8

#1F25A8 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.3% C 0.201 H 269.7°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#1F25A8
RGB	rgb(31, 37, 168)
HSL	hsl(237, 69%, 39%)
HSV	hsv(237, 82%, 66%)
CMYK	cmyk(81.5%, 78%, 0%, 34.1%)
CIE-LAB	lab(25.08, 44.70, -69.32)
CIE-LCH	lch(25.08, 82.48, 302.82°)
OKLab	oklab(37.31% -0.0012 -0.2008)
OKLCH	oklch(37.31% 0.201 269.7)
XYZ	xyz(8.2921, 4.4406, 37.4583)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F25A8 #A8A21F

analogous

#1F6AA8 #1F25A8 #5E1FA8

triadic

#1F25A8 #A81F25 #25A81F

tetradic

#1F25A8 #A81F6A #A8A21F #1FA85E

square

#1F25A8 #A81F6A #A8A21F #1FA85E

split-complementary

#1F25A8 #A85E1F #6AA81F

monochromatic

#0C0E41 #151A74 #1F25A8 #2C34D8 #6065E2

Accessibility & contrast

On white

11.12

#1F25A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#1F25A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F25A8

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F25A8	#FFFFFF	#000000	##FFFFFF
##1F25A8	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042AC

Deuteranopia (green-blind)

#0034A6

Tritanopia (blue-blind)

#004D66

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1f25a8;
/* rgb */ color: rgb(31, 37, 168);
/* oklch */ color: oklch(37.3% 0.201 269.7);

Tailwind

colors: {
  custom: {
    50: '#7662c3',
    500: '#1f25a8',
    950: '#000000',
  },
}

SCSS

$custom: #1f25a8;
$custom-light: #7662c3;
$custom-dark: #000000;

JSON

{
  "hex": "#1f25a8",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 168
  },
  "hsl": {
    "h": 237.372,
    "s": 68.844,
    "l": 39.02
  },
  "oklch": {
    "l": 0.37313,
    "c": 0.20079,
    "h": 269.7
  },
  "luminance": 0.04442
}

Semantic roles & 50–950 ramp

primary

#1F25A8

secondary

#C6C25D

accent

#E43CEC

background

#F7F5FC

surface

#EEEAF8

border

#C9C6D1

text

#0A0513

muted

#7C7982

Preview Lab

Preview with #1F25A8

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

Preview Lab → · Contrast checker → · Palette generator →