#334F7B#334F7B

#334F7B is a dark, moderate blue. Relative luminance 0.077; OKLCH L 42.7% C 0.081 H 259.1°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#334F7B
RGB	rgb(51, 79, 123)
HSL	hsl(217, 41%, 34%)
HSV	hsv(217, 59%, 48%)
CMYK	cmyk(58.5%, 35.8%, 0%, 51.8%)
CIE-LAB	lab(33.40, 3.73, -28.17)
CIE-LCH	lch(33.40, 28.41, 277.54°)
OKLab	oklab(42.69% -0.0153 -0.0796)
OKLCH	oklch(42.69% 0.081 259.1)
XYZ	xyz(7.7351, 7.7252, 19.8185)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#334F7B #7B5F33

analogous

#33737B #334F7B #3B337B

triadic

#334F7B #7B334F #4F7B33

tetradic

#334F7B #7B3373 #7B5F33 #337B3B

square

#334F7B #7B3373 #7B5F33 #337B3B

split-complementary

#334F7B #7B3B33 #737B33

monochromatic

#0F1724 #213350 #334F7B #456BA6 #688AC0

Accessibility & contrast

On white

8.25

#334F7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#334F7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #334F7B

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##334F7B	#FFFFFF	#000000	##FFFFFF
##334F7B	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D527D

Deuteranopia (green-blind)

#344B7A

Tritanopia (blue-blind)

#01595F

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #334f7b;
/* rgb */ color: rgb(51, 79, 123);
/* oklch */ color: oklch(42.7% 0.081 259.1);

Tailwind

colors: {
  custom: {
    50: '#7180a1',
    500: '#334f7b',
    950: '#000000',
  },
}

SCSS

$custom: #334f7b;
$custom-light: #7180a1;
$custom-dark: #000000;

JSON

{
  "hex": "#334f7b",
  "rgb": {
    "r": 51,
    "g": 79,
    "b": 123
  },
  "hsl": {
    "h": 216.667,
    "s": 41.379,
    "l": 34.118
  },
  "oklch": {
    "l": 0.42689,
    "c": 0.08102,
    "h": 259.1
  },
  "luminance": 0.07726
}

Semantic roles & 50–950 ramp

primary

#334F7B

secondary

#A88D62

accent

#A257D1

background

#F7F7F9

surface

#EDEEF2

border

#C8C9CC

text

#080A0F

muted

#7B7C7E

Preview Lab

Preview with #334F7B

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

Preview Lab → · Contrast checker → · Palette generator →