#4972BB
Closest named color: Windows Blue (#3778BF). oklch(55.7% 0.123 261.1), rgb(73, 114, 187).
Aa
White text reads best on this color (4.76:1).
About this color
#4972BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.123 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.021 away. White text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #4972BB |
| RGB | rgb(73, 114, 187) |
| HSL | hsl(218, 46%, 51%) |
| OKLCH | oklch(55.7% 0.123 261.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #4972BB | 4.76:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #4972BB | 4.40:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #4972BB text on white | 4.76:1 | AA | Lc 72.9 | Content text, not long reading |
| #4972BB text on black | 4.40:1 | AA large text | Lc -28.8 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ADC2E5
oklch(81% 0.055 260.6)
-
Step 400
400
#81A1D8
oklch(70.6% 0.089 261)
-
Step 500
500
#6289CE
oklch(63.1% 0.113 261.2)
-
Step 600
600 (this color)
#4972BB
oklch(55.7% 0.123 261.1)
-
Step 700
700
#3A5FA1
oklch(49.1% 0.114 261.1)
-
Step 800
800
#304E82
oklch(42.7% 0.094 260.7)
-
Step 900
900
#2B4169
oklch(37.7% 0.074 261.6)
-
Step 950
950
#19263D
oklch(26.9% 0.047 261.3)
#4972BB with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5378BE | 0.021 |
| Deuteranopia (no green cones) | #436EB9 | 0.014 |
| Tritanopia (no blue cones) | #00828D | 0.105 |
| Achromatopsia (no color) | #737373 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4972BB
#4972BB
oklch(55.7% 0.123 261.1)
- #966B00
#966B00
oklch(55.7% 0.115 80.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #4972BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.021
- French Blue #436BAD ΔE 0.029
- Flat Blue #3C73A8 ΔE 0.034
- Mid Blue #276AB3 ΔE 0.042
- Nice Blue #107AB0 ΔE 0.047
- Muted Blue #3B719F ΔE 0.048
- Steel Blue #4682B4 ΔE 0.049
- Dull Blue #49759C ΔE 0.052
Use #4972BB in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.