#1D355F#1D355F

#1D355F is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.3% C 0.080 H 260.8°. Best body text is #FFFFFF at 12.16:1 contrast (WCAG AA passes).

Color values

HEX	#1D355F
RGB	rgb(29, 53, 95)
HSL	hsl(218, 53%, 24%)
HSV	hsv(218, 69%, 37%)
CMYK	cmyk(69.5%, 44.2%, 0%, 62.7%)
CIE-LAB	lab(22.42, 6.03, -27.81)
CIE-LCH	lch(22.42, 28.46, 282.24°)
OKLab	oklab(33.31% -0.0128 -0.0792)
OKLCH	oklch(33.31% 0.08 260.8)
XYZ	xyz(3.8446, 3.6333, 11.3229)
Luminance	0.0363 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D355F #5F471D

analogous

#1D565F #1D355F #261D5F

triadic

#1D355F #5F1D35 #355F1D

tetradic

#1D355F #5F1D56 #5F471D #1D5F26

square

#1D355F #5F1D56 #5F471D #1D5F26

split-complementary

#1D355F #5F261D #565F1D

monochromatic

#070D17 #0F1B30 #1D355F #2B4F8E #3A69BD

Accessibility & contrast

On white

12.16

#1D355F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D355F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D355F

12.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D355F	#FFFFFF	#000000	##FFFFFF
##1D355F	1.00	12.16	1.73	12.16
#FFFFFF	12.16	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223961

Deuteranopia (green-blind)

#18335E

Tritanopia (blue-blind)

#003F45

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d355f;
/* rgb */ color: rgb(29, 53, 95);
/* oklch */ color: oklch(33.3% 0.080 260.8);

Tailwind

colors: {
  custom: {
    50: '#616b8d',
    500: '#1d355f',
    950: '#000000',
  },
}

SCSS

$custom: #1d355f;
$custom-light: #616b8d;
$custom-dark: #000000;

JSON

{
  "hex": "#1d355f",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 95
  },
  "hsl": {
    "h": 218.182,
    "s": 53.226,
    "l": 24.314
  },
  "oklch": {
    "l": 0.33307,
    "c": 0.08028,
    "h": 260.8
  },
  "luminance": 0.03634
}

Semantic roles & 50–950 ramp

primary

#1D355F

secondary

#947744

accent

#A84BDD

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05060C

muted

#7A7A7D

Preview Lab

Preview with #1D355F

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

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