#1F25B0#1F25B0

#1F25B0 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.2% C 0.210 H 269.3°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#1F25B0
RGB	rgb(31, 37, 176)
HSL	hsl(238, 70%, 41%)
HSV	hsv(238, 82%, 69%)
CMYK	cmyk(82.4%, 79%, 0%, 31%)
CIE-LAB	lab(26.00, 47.35, -72.59)
CIE-LCH	lch(26.00, 86.67, 303.12°)
OKLab	oklab(38.24% -0.0026 -0.2103)
OKLCH	oklch(38.24% 0.21 269.3)
XYZ	xyz(9.0604, 4.7480, 41.5048)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F25B0 #B0AA1F

analogous

#1F6DB0 #1F25B0 #611FB0

triadic

#1F25B0 #B01F25 #25B01F

tetradic

#1F25B0 #B01F6D #B0AA1F #1FB061

square

#1F25B0 #B01F6D #B0AA1F #1FB061

split-complementary

#1F25B0 #B0611F #6DB01F

monochromatic

#0D0F48 #161A7C #1F25B0 #3138DB #656BE4

Accessibility & contrast

On white

10.77

#1F25B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#1F25B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F25B0

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F25B0	#FFFFFF	#000000	##FFFFFF
##1F25B0	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0045B4

Deuteranopia (green-blind)

#0036AE

Tritanopia (blue-blind)

#00506A

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1f25b0;
/* rgb */ color: rgb(31, 37, 176);
/* oklch */ color: oklch(38.2% 0.210 269.3);

Tailwind

colors: {
  custom: {
    50: '#7862c9',
    500: '#1f25b0',
    950: '#000000',
  },
}

SCSS

$custom: #1f25b0;
$custom-light: #7862c9;
$custom-dark: #000000;

JSON

{
  "hex": "#1f25b0",
  "rgb": {
    "r": 31,
    "g": 37,
    "b": 176
  },
  "hsl": {
    "h": 237.517,
    "s": 70.048,
    "l": 40.588
  },
  "oklch": {
    "l": 0.38235,
    "c": 0.2103,
    "h": 269.3
  },
  "luminance": 0.04749
}

Semantic roles & 50–950 ramp

primary

#1F25B0

secondary

#C9C562

accent

#E53BED

background

#F8F5FC

surface

#EFEAF8

border

#CAC6D1

text

#0B0513

muted

#7C7982

Preview Lab

Preview with #1F25B0

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

Preview Lab → · Contrast checker → · Palette generator →