#5172A2
Closest named color: Dull Blue (#49759C). oklch(54.8% 0.085 257.7), rgb(81, 114, 162).
Aa
White text reads best on this color (4.90:1).
About this color
#5172A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.085 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.017 away. White text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.27:1 |
| White text | 4.90:1 |
Values
| HEX | #5172A2 |
| RGB | rgb(81, 114, 162) |
| HSL | hsl(216, 33%, 48%) |
| OKLCH | oklch(54.8% 0.085 257.7) |
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 #5172A2 | 4.90:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #5172A2 | 4.27:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #5172A2 text on white | 4.90:1 | AA | Lc 73.9 | Content text, not long reading |
| #5172A2 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
#D1DAE7
oklch(88.5% 0.02 257.5)
-
Step 300
300
#B2C2DA
oklch(81% 0.038 258.4)
-
Step 400
400
#89A2C7
oklch(70.6% 0.061 258.1)
-
Step 500
500
#6C8BB9
oklch(63.1% 0.078 258.1)
-
Step 600
600 (this color)
#5172A2
oklch(54.8% 0.085 257.7)
-
Step 700
700
#44628D
oklch(49.2% 0.078 257.4)
-
Step 800
800
#385073
oklch(42.8% 0.066 257.7)
-
Step 900
900
#30425D
oklch(37.6% 0.052 258.3)
-
Step 950
950
#1C2736
oklch(27% 0.032 256.3)
#5172A2 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) | #5F75A4 | 0.021 |
| Deuteranopia (no green cones) | #566DA1 | 0.015 |
| Tritanopia (no blue cones) | #2D7D83 | 0.075 |
| Achromatopsia (no color) | #717171 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5172A2
#5172A2
oklch(54.8% 0.085 257.7)
- #8C6A33
#8C6A33
oklch(54.7% 0.084 77.4)
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 #5172A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.017
- Flat Blue #3C73A8 ΔE 0.022
- Muted Blue #3B719F ΔE 0.025
- Stormy Blue #507B9C ΔE 0.030
- Cerulean #457B9D ΔE 0.031
- Metallic Blue #4F738E ΔE 0.033
- French Blue #436BAD ΔE 0.034
- Steel Blue #4682B4 ΔE 0.047
Use #5172A2 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.