#1D276B#1D276B

#1D276B is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.1% C 0.118 H 271.3°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#1D276B
RGB	rgb(29, 39, 107)
HSL	hsl(232, 57%, 27%)
HSV	hsv(232, 73%, 42%)
CMYK	cmyk(72.9%, 63.6%, 0%, 58%)
CIE-LAB	lab(19.11, 20.89, -40.97)
CIE-LCH	lch(19.11, 45.99, 297.01°)
OKLab	oklab(31.09% 0.0027 -0.1182)
OKLCH	oklch(31.09% 0.118 271.3)
XYZ	xyz(3.8852, 2.7734, 14.2376)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D276B #6B611D

analogous

#1D4E6B #1D276B #3A1D6B

triadic

#1D276B #6B1D27 #276B1D

tetradic

#1D276B #6B1D4E #6B611D #1D6B3A

square

#1D276B #6B1D4E #6B611D #1D6B3A

split-complementary

#1D276B #6B3A1D #4E6B1D

monochromatic

#070918 #10153B #1D276B #2A399B #394CC9

Accessibility & contrast

On white

13.51

#1D276B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#1D276B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D276B

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D276B	#FFFFFF	#000000	##FFFFFF
##1D276B	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#003845

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #1d276b;
/* rgb */ color: rgb(29, 39, 107);
/* oklch */ color: oklch(31.1% 0.118 271.3);

Tailwind

colors: {
  custom: {
    50: '#656196',
    500: '#1d276b',
    950: '#000000',
  },
}

SCSS

$custom: #1d276b;
$custom-light: #656196;
$custom-dark: #000000;

JSON

{
  "hex": "#1d276b",
  "rgb": {
    "r": 29,
    "g": 39,
    "b": 107
  },
  "hsl": {
    "h": 232.308,
    "s": 57.353,
    "l": 26.667
  },
  "oklch": {
    "l": 0.3109,
    "c": 0.1182,
    "h": 271.3
  },
  "luminance": 0.02774
}

Semantic roles & 50–950 ramp

primary

#1D276B

secondary

#A09444

accent

#CD47E1

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #1D276B

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

Preview Lab → · Contrast checker → · Palette generator →