#4B73A2
Closest named color: Dull Blue (#49759C). oklch(54.6% 0.087 253.3), rgb(75, 115, 162).
Aa
White text reads best on this color (4.91:1).
About this color
#4B73A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.087 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.013 away. White text reads best on it, at 4.91:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.27:1 |
| White text | 4.91:1 |
Values
| HEX | #4B73A2 |
| RGB | rgb(75, 115, 162) |
| HSL | hsl(212, 37%, 46%) |
| OKLCH | oklch(54.6% 0.087 253.3) |
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 #4B73A2 | 4.91:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #4B73A2 | 4.27:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #4B73A2 text on white | 4.91:1 | AA | Lc 73.9 | Content text, not long reading |
| #4B73A2 text on black | 4.27:1 | AA large text | Lc -27.8 | 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
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF1
oklch(93.5% 0.011 256.7)
-
Step 200
200
#CFDAE8
oklch(88.4% 0.023 254.4)
-
Step 300
300
#AFC3DA
oklch(80.9% 0.039 252)
-
Step 400
400
#85A3C7
oklch(70.6% 0.063 253.3)
-
Step 500
500
#678CB9
oklch(63% 0.08 253.8)
-
Step 600
600 (this color)
#4B73A2
oklch(54.6% 0.087 253.3)
-
Step 700
700
#3E638D
oklch(49.1% 0.08 252.6)
-
Step 800
800
#345173
oklch(42.8% 0.067 253.2)
-
Step 900
900
#2D435D
oklch(37.7% 0.053 253.2)
-
Step 950
950
#1B2736
oklch(26.9% 0.033 254.4)
#4B73A2 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) | #6075A4 | 0.027 |
| Deuteranopia (no green cones) | #556DA1 | 0.019 |
| Tritanopia (no blue cones) | #1A7E83 | 0.077 |
| Achromatopsia (no color) | #717171 | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B73A2
#4B73A2
oklch(54.6% 0.087 253.3)
- #8F6832
#8F6832
oklch(54.6% 0.087 73.1)
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 #4B73A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.013
- Flat Blue #3C73A8 ΔE 0.017
- Muted Blue #3B719F ΔE 0.019
- Cerulean #457B9D ΔE 0.027
- Stormy Blue #507B9C ΔE 0.029
- Metallic Blue #4F738E ΔE 0.032
- French Blue #436BAD ΔE 0.034
- Nice Blue #107AB0 ΔE 0.042
Use #4B73A2 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.