#1F266B#1F266B

#1F266B is a dark, moderate blue. Relative luminance 0.027; OKLCH L 31.0% C 0.119 H 272.9°. Best body text is #FFFFFF at 13.57:1 contrast (WCAG AA passes).

Color values

HEX	#1F266B
RGB	rgb(31, 38, 107)
HSL	hsl(234, 55%, 27%)
HSV	hsv(234, 71%, 42%)
CMYK	cmyk(71%, 64.5%, 0%, 58%)
CIE-LAB	lab(18.97, 21.91, -41.21)
CIE-LCH	lch(18.97, 46.67, 297.99°)
OKLab	oklab(31.01% 0.006 -0.1188)
OKLCH	oklch(31.01% 0.119 272.9)
XYZ	xyz(3.9111, 2.7387, 14.2296)
Luminance	0.0274 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F266B #6B641F

analogous

#1F4C6B #1F266B #3E1F6B

triadic

#1F266B #6B1F26 #266B1F

tetradic

#1F266B #6B1F4C #6B641F #1F6B3E

square

#1F266B #6B1F4C #6B641F #1F6B3E

split-complementary

#1F266B #6B3E1F #4C6B1F

monochromatic

#070818 #11153C #1F266B #2D379A #3D4AC7

Accessibility & contrast

On white

13.57

#1F266B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1F266B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F266B

13.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F266B	#FFFFFF	#000000	##FFFFFF
##1F266B	1.00	13.57	1.55	13.57
#FFFFFF	13.57	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#003744

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1f266b;
/* rgb */ color: rgb(31, 38, 107);
/* oklch */ color: oklch(31.0% 0.119 272.9);

Tailwind

colors: {
  custom: {
    50: '#666096',
    500: '#1f266b',
    950: '#000000',
  },
}

SCSS

$custom: #1f266b;
$custom-light: #666096;
$custom-dark: #000000;

JSON

{
  "hex": "#1f266b",
  "rgb": {
    "r": 31,
    "g": 38,
    "b": 107
  },
  "hsl": {
    "h": 234.474,
    "s": 55.072,
    "l": 27.059
  },
  "oklch": {
    "l": 0.31015,
    "c": 0.11897,
    "h": 272.9
  },
  "luminance": 0.02739
}

Semantic roles & 50–950 ramp

primary

#1F266B

secondary

#9F9747

accent

#D149DE

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040D

muted

#7A797E

Preview Lab

Preview with #1F266B

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

Preview Lab → · Contrast checker → · Palette generator →