#1F126B#1F126B

#1F126B is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.7% C 0.143 H 278.2°. Best body text is #FFFFFF at 15.48:1 contrast (WCAG AA passes).

Color values

HEX	#1F126B
RGB	rgb(31, 18, 107)
HSL	hsl(249, 71%, 25%)
HSV	hsv(249, 83%, 42%)
CMYK	cmyk(71%, 83.2%, 0%, 58%)
CIE-LAB	lab(14.32, 34.62, -48.84)
CIE-LCH	lch(14.32, 59.87, 305.33°)
OKLab	oklab(27.67% 0.0203 -0.1411)
OKLCH	oklch(27.67% 0.143 278.2)
XYZ	xyz(3.4344, 1.7852, 14.0707)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F126B #5E6B12

analogous

#12326B #1F126B #4C126B

triadic

#1F126B #6B1F12 #126B1F

tetradic

#1F126B #6B1232 #5E6B12 #126B4C

square

#1F126B #6B1232 #5E6B12 #126B4C

split-complementary

#1F126B #6B4C12 #326B12

monochromatic

#08041A #100937 #1F126B #2E1B9F #3D24D4

Accessibility & contrast

On white

15.48

#1F126B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1F126B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F126B

15.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F126B	#FFFFFF	#000000	##FFFFFF
##1F126B	1.00	15.48	1.36	15.48
#FFFFFF	15.48	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286D

Deuteranopia (green-blind)

#002169

Tritanopia (blue-blind)

#002D3E

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1f126b;
/* rgb */ color: rgb(31, 18, 107);
/* oklch */ color: oklch(27.7% 0.143 278.2);

Tailwind

colors: {
  custom: {
    50: '#685396',
    500: '#1f126b',
    950: '#000000',
  },
}

SCSS

$custom: #1f126b;
$custom-light: #685396;
$custom-dark: #000000;

JSON

{
  "hex": "#1f126b",
  "rgb": {
    "r": 31,
    "g": 18,
    "b": 107
  },
  "hsl": {
    "h": 248.764,
    "s": 71.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.27674,
    "c": 0.14256,
    "h": 278.2
  },
  "luminance": 0.01785
}

Semantic roles & 50–950 ramp

primary

#1F126B

secondary

#93A236

accent

#EE3AD4

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07020D

muted

#7A787E

Preview Lab

Preview with #1F126B

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

Preview Lab → · Contrast checker → · Palette generator →