#2957BD#2957BD

#2957BD is a mid, vivid blue. Relative luminance 0.110; OKLCH L 48.6% C 0.169 H 263.2°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#2957BD
RGB	rgb(41, 87, 189)
HSL	hsl(221, 64%, 45%)
HSV	hsv(221, 78%, 74%)
CMYK	cmyk(78.3%, 54%, 0%, 25.9%)
CIE-LAB	lab(39.51, 21.62, -58.11)
CIE-LCH	lch(39.51, 62.00, 290.41°)
OKLab	oklab(48.62% -0.0199 -0.1675)
OKLCH	oklch(48.62% 0.169 263.2)
XYZ	xyz(13.5047, 10.9604, 49.5381)
Luminance	0.1096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2957BD #BD8F29

analogous

#29A1BD #2957BD #4529BD

triadic

#2957BD #BD2957 #57BD29

tetradic

#2957BD #BD29A1 #BD8F29 #29BD45

square

#2957BD #BD29A1 #BD8F29 #29BD45

split-complementary

#2957BD #BD4529 #A1BD29

monochromatic

#132958 #1E408B #2957BD #4B77D8 #7D9DE3

Accessibility & contrast

On white

6.58

#2957BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#2957BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2957BD

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2957BD	#FFFFFF	#000000	##FFFFFF
##2957BD	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C1

Deuteranopia (green-blind)

#0057BB

Tritanopia (blue-blind)

#007081

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #2957bd;
/* rgb */ color: rgb(41, 87, 189);
/* oklch */ color: oklch(48.6% 0.169 263.2);

Tailwind

colors: {
  custom: {
    50: '#7a85d2',
    500: '#2957bd',
    950: '#000000',
  },
}

SCSS

$custom: #2957bd;
$custom-light: #7a85d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2957bd",
  "rgb": {
    "r": 41,
    "g": 87,
    "b": 189
  },
  "hsl": {
    "h": 221.351,
    "s": 64.348,
    "l": 45.098
  },
  "oklch": {
    "l": 0.48617,
    "c": 0.16871,
    "h": 263.2
  },
  "luminance": 0.10962
}

Semantic roles & 50–950 ramp

primary

#2957BD

secondary

#CBB177

accent

#B340E7

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #2957BD

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

Preview Lab → · Contrast checker → · Palette generator →