#1D25B3#1D25B3

#1D25B3 is a dark, highly saturated blue. Relative luminance 0.048; OKLCH L 38.5% C 0.214 H 268.6°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#1D25B3
RGB	rgb(29, 37, 179)
HSL	hsl(237, 72%, 41%)
HSV	hsv(237, 84%, 70%)
CMYK	cmyk(83.8%, 79.3%, 0%, 29.8%)
CIE-LAB	lab(26.27, 48.23, -73.95)
CIE-LCH	lch(26.27, 88.29, 303.11°)
OKLab	oklab(38.5% -0.0051 -0.2142)
OKLCH	oklch(38.5% 0.214 268.6)
XYZ	xyz(9.3022, 4.8379, 43.0826)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D25B3 #B3AB1D

analogous

#1D70B3 #1D25B3 #601DB3

triadic

#1D25B3 #B31D25 #25B31D

tetradic

#1D25B3 #B31D70 #B3AB1D #1DB360

square

#1D25B3 #B31D70 #B3AB1D #1DB360

split-complementary

#1D25B3 #B3601D #70B31D

monochromatic

#0C0F4A #141A7E #1D25B3 #3039DD #646BE6

Accessibility & contrast

On white

10.67

#1D25B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#1D25B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D25B3

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D25B3	#FFFFFF	#000000	##FFFFFF
##1D25B3	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0046B7

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#00516C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #1d25b3;
/* rgb */ color: rgb(29, 37, 179);
/* oklch */ color: oklch(38.5% 0.214 268.6);

Tailwind

colors: {
  custom: {
    50: '#7862cb',
    500: '#1d25b3',
    950: '#000000',
  },
}

SCSS

$custom: #1d25b3;
$custom-light: #7862cb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d25b3",
  "rgb": {
    "r": 29,
    "g": 37,
    "b": 179
  },
  "hsl": {
    "h": 236.8,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.38497,
    "c": 0.21431,
    "h": 268.6
  },
  "luminance": 0.04839
}

Semantic roles & 50–950 ramp

primary

#1D25B3

secondary

#CBC561

accent

#E539EF

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0514

muted

#7C7A82

Preview Lab

Preview with #1D25B3

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

Preview Lab → · Contrast checker → · Palette generator →